23420810 has 64 divisors (see below), whose sum is σ = 51093504. Its totient is φ = 7560000.

The previous prime is 23420807. The next prime is 23420819. The reversal of 23420810 is 1802432.

It is a super-2 number, since 2×23420810² = 1097068682112200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23420819) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 93185 + ... + 93435.

It is an arithmetic number, because the mean of its divisors is an integer number (798336).

Almost surely, 2^23420810 is an apocalyptic number.

23420810 is an abundant number, since it is smaller than the sum of its proper divisors (27672694).

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

23420810 is a wasteful number, since it uses less digits than its factorization.

23420810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 23420810 is about 4839.5051399911. The cubic root of 23420810 is about 286.1106146205.

The spelling of 23420810 in words is "twenty-three million, four hundred twenty thousand, eight hundred ten".