23933970 has 48 divisors (see below), whose sum is σ = 62868312. Its totient is φ = 6316800.

The previous prime is 23933957. The next prime is 23933971. The reversal of 23933970 is 7933932.

It can be written as a sum of positive squares in 4 ways, for example, as 21040569 + 2893401 = 4587^2 + 1701^2 .

It is not an unprimeable number, because it can be changed into a prime (23933971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7774 + ... + 10406.

Almost surely, 2^23933970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23933970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31434156).

23933970 is an abundant number, since it is smaller than the sum of its proper divisors (38934342).

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

23933970 is a wasteful number, since it uses less digits than its factorization.

23933970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2747 (or 2744 counting only the distinct ones).

The product of its (nonzero) digits is 30618, while the sum is 36.

The square root of 23933970 is about 4892.2356852466. The cubic root of 23933970 is about 288.1851384829.

The spelling of 23933970 in words is "twenty-three million, nine hundred thirty-three thousand, nine hundred seventy".