10556420 has 24 divisors (see below), whose sum is σ = 25335744. Its totient is φ = 3619296.

The previous prime is 10556411. The next prime is 10556423. The reversal of 10556420 is 2465501.

It is a super-2 number, since 2×10556420² = 222876006432800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10556423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37562 + ... + 37841.

It is an arithmetic number, because the mean of its divisors is an integer number (1055656).

Almost surely, 2^10556420 is an apocalyptic number.

10556420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10556420 is an abundant number, since it is smaller than the sum of its proper divisors (14779324).

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

10556420 is a wasteful number, since it uses less digits than its factorization.

10556420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75419 (or 75417 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 10556420 is about 3249.0644807390. The cubic root of 10556420 is about 219.3674668614.

The spelling of 10556420 in words is "ten million, five hundred fifty-six thousand, four hundred twenty".