399364152 has 64 divisors (see below), whose sum is σ = 1091439360. Its totient is φ = 120768000.

The previous prime is 399364151. The next prime is 399364159. The reversal of 399364152 is 251463993.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399364151) 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, 155277 + ... + 157827.

It is an arithmetic number, because the mean of its divisors is an integer number (17053740).

Almost surely, 2^399364152 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 399364152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (545719680).

399364152 is an abundant number, since it is smaller than the sum of its proper divisors (692075208).

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

399364152 is a wasteful number, since it uses less digits than its factorization.

399364152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164 (or 3160 counting only the distinct ones).

The product of its digits is 174960, while the sum is 42.

The square root of 399364152 is about 19984.0974777446. The cubic root of 399364152 is about 736.4156786652.

The spelling of 399364152 in words is "three hundred ninety-nine million, three hundred sixty-four thousand, one hundred fifty-two".