23231070 has 64 divisors (see below), whose sum is σ = 62496000. Its totient is φ = 6140448.

The previous prime is 23231063. The next prime is 23231077. The reversal of 23231070 is 7013232.

It is an interprime number because it is at equal distance from previous prime (23231063) and next prime (23231077).

It is a super-2 number, since 2×23231070² = 1079365226689800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23231077) 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, 37221 + ... + 37839.

It is an arithmetic number, because the mean of its divisors is an integer number (976500).

Almost surely, 2^23231070 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23231070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31248000).

23231070 is an abundant number, since it is smaller than the sum of its proper divisors (39264930).

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

23231070 is a wasteful number, since it uses less digits than its factorization.

23231070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 774 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 18.

The square root of 23231070 is about 4819.8620312204. The cubic root of 23231070 is about 285.3358920613.

The spelling of 23231070 in words is "twenty-three million, two hundred thirty-one thousand, seventy".