2650000 has 60 divisors (see below), whose sum is σ = 6538644. Its totient is φ = 1040000.

The previous prime is 2649989. The next prime is 2650007. The reversal of 2650000 is 562.

It can be written as a sum of positive squares in 6 ways, for example, as 1937664 + 712336 = 1392^2 + 844^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2650007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 49974 + ... + 50026.

2^2650000 is an apocalyptic number.

2650000 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 2650000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3269322).

2650000 is an abundant number, since it is smaller than the sum of its proper divisors (3888644).

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

2650000 is an frugal number, since it uses more digits than its factorization.

2650000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 60 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 13.

The square root of 2650000 is about 1627.8820596100. The cubic root of 2650000 is about 138.3827503644.

Adding to 2650000 its reverse (562), we get a palindrome (2650562).

The spelling of 2650000 in words is "two million, six hundred fifty thousand".