232420251 has 16 divisors (see below), whose sum is σ = 354901248. Its totient is φ = 132535200.

The previous prime is 232420249. The next prime is 232420261. The reversal of 232420251 is 152024232.

It is not a de Polignac number, because 232420251 - 2¹ = 232420249 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (232420261) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 960 + ... + 21581.

It is an arithmetic number, because the mean of its divisors is an integer number (22181328).

Almost surely, 2^232420251 is an apocalyptic number.

232420251 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

232420251 is a deficient number, since it is larger than the sum of its proper divisors (122480997).

232420251 is a wasteful number, since it uses less digits than its factorization.

232420251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23042.

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 232420251 is about 15245.3353849628. The cubic root of 232420251 is about 614.8341597916.

Adding to 232420251 its reverse (152024232), we get a palindrome (384444483).

The spelling of 232420251 in words is "two hundred thirty-two million, four hundred twenty thousand, two hundred fifty-one".