23421474 has 20 divisors (see below), whose sum is σ = 52481814. Its totient is φ = 7807104.

The previous prime is 23421469. The next prime is 23421511. The reversal of 23421474 is 47412432.

It can be written as a sum of positive squares in only one way, i.e., 22155849 + 1265625 = 4707^2 + 1125^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a plaindrome in base 11.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 72127 + ... + 72450.

Almost surely, 2^23421474 is an apocalyptic number.

23421474 is an abundant number, since it is smaller than the sum of its proper divisors (29060340).

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

23421474 is a wasteful number, since it uses less digits than its factorization.

23421474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144591 (or 144582 counting only the distinct ones).

The product of its digits is 5376, while the sum is 27.

The square root of 23421474 is about 4839.5737415603. The cubic root of 23421474 is about 286.1133184219.

The spelling of 23421474 in words is "twenty-three million, four hundred twenty-one thousand, four hundred seventy-four".