2658620 has 24 divisors (see below), whose sum is σ = 5614224. Its totient is φ = 1057536.

The previous prime is 2658611. The next prime is 2658637. The reversal of 2658620 is 268562.

It is a Smith number, since the sum of its digits (29) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5924 + ... + 6356.

It is an arithmetic number, because the mean of its divisors is an integer number (233926).

2^2658620 is an apocalyptic number.

2658620 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2658620 is an abundant number, since it is smaller than the sum of its proper divisors (2955604).

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

2658620 is a wasteful number, since it uses less digits than its factorization.

2658620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749 (or 747 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

The square root of 2658620 is about 1630.5275220002. The cubic root of 2658620 is about 138.5326331633.

The spelling of 2658620 in words is "two million, six hundred fifty-eight thousand, six hundred twenty".