2652780 has 96 divisors (see below), whose sum is σ = 8467200. Its totient is φ = 615168.

The previous prime is 2652779. The next prime is 2652791. The reversal of 2652780 is 872562.

2652780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 14731 + ... + 14909.

It is an arithmetic number, because the mean of its divisors is an integer number (88200).

2^2652780 is an apocalyptic number.

2652780 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 2652780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4233600).

2652780 is an abundant number, since it is smaller than the sum of its proper divisors (5814420).

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

2652780 is a wasteful number, since it uses less digits than its factorization.

2652780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223 (or 221 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 2652780 is about 1628.7357060002. The cubic root of 2652780 is about 138.4311238989.

The spelling of 2652780 in words is "two million, six hundred fifty-two thousand, seven hundred eighty".