399261104 has 40 divisors (see below), whose sum is σ = 857750160. Its totient is φ = 178502400.

The previous prime is 399261103. The next prime is 399261119. The reversal of 399261104 is 401162993.

It is not an unprimeable number, because it can be changed into a prime (399261101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7859 + ... + 29330.

It is an arithmetic number, because the mean of its divisors is an integer number (21443754).

Almost surely, 2^399261104 is an apocalyptic number.

It is an amenable number.

399261104 is an abundant number, since it is smaller than the sum of its proper divisors (458489056).

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

399261104 is a wasteful number, since it uses less digits than its factorization.

399261104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37269 (or 37263 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 399261104 is about 19981.5190613727. The cubic root of 399261104 is about 736.3523340623.

The spelling of 399261104 in words is "three hundred ninety-nine million, two hundred sixty-one thousand, one hundred four".