2650020 has 48 divisors (see below), whose sum is σ = 7680960. Its totient is φ = 681856.

The previous prime is 2650013. The next prime is 2650027. The reversal of 2650020 is 200562.

2650020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (2650013) and next prime (2650027).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (2650027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 979 + ... + 2501.

It is an arithmetic number, because the mean of its divisors is an integer number (160020).

2^2650020 is an apocalyptic number.

2650020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2650020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3840480).

2650020 is an abundant number, since it is smaller than the sum of its proper divisors (5030940).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2650020 is a wasteful number, since it uses less digits than its factorization.

2650020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 1562 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2650020 is about 1627.8882025495. Note that the first 3 decimals coincide. The cubic root of 2650020 is about 138.3830984963.

Adding to 2650020 its reverse (200562), we get a palindrome (2850582).

The spelling of 2650020 in words is "two million, six hundred fifty thousand, twenty".