399260232 has 256 divisors, whose sum is σ = 1373760000. Its totient is φ = 107025408.

The previous prime is 399260231. The next prime is 399260293. The reversal of 399260232 is 232062993.

399260232 is a `hidden beast` number, since 399 + 260 + 2 + 3 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (399260231) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1259338 + ... + 1259654.

It is an arithmetic number, because the mean of its divisors is an integer number (5366250).

Almost surely, 2^399260232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 399260232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (686880000).

399260232 is an abundant number, since it is smaller than the sum of its proper divisors (974499768).

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

399260232 is a wasteful number, since it uses less digits than its factorization.

399260232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370 (or 346 counting only the distinct ones).

The product of its (nonzero) digits is 34992, while the sum is 36.

The square root of 399260232 is about 19981.4972411979. The cubic root of 399260232 is about 736.3517979890.

The spelling of 399260232 in words is "three hundred ninety-nine million, two hundred sixty thousand, two hundred thirty-two".