2628660 has 48 divisors (see below), whose sum is σ = 7430976. Its totient is φ = 694272.

The previous prime is 2628649. The next prime is 2628667. The reversal of 2628660 is 668262.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2628667) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11467 + ... + 11693.

It is an arithmetic number, because the mean of its divisors is an integer number (154812).

2^2628660 is an apocalyptic number.

2628660 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2628660 is an abundant number, since it is smaller than the sum of its proper divisors (4802316).

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

2628660 is a wasteful number, since it uses less digits than its factorization.

2628660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432 (or 430 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

The square root of 2628660 is about 1621.3142816863. The cubic root of 2628660 is about 138.0102911880.

The spelling of 2628660 in words is "two million, six hundred twenty-eight thousand, six hundred sixty".