23421770 has 16 divisors (see below), whose sum is σ = 42668640. Its totient is φ = 9255504.

The previous prime is 23421719. The next prime is 23421773. The reversal of 23421770 is 7712432.

It is not an unprimeable number, because it can be changed into a prime (23421773) 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, 13280 + ... + 14939.

It is an arithmetic number, because the mean of its divisors is an integer number (2666790).

Almost surely, 2^23421770 is an apocalyptic number.

23421770 is a deficient number, since it is larger than the sum of its proper divisors (19246870).

23421770 is a wasteful number, since it uses less digits than its factorization.

23421770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28309.

The product of its (nonzero) digits is 2352, while the sum is 26.

The square root of 23421770 is about 4839.6043226694. The cubic root of 23421770 is about 286.1145237145.

The spelling of 23421770 in words is "twenty-three million, four hundred twenty-one thousand, seven hundred seventy".