399344410120 has 32 divisors (see below), whose sum is σ = 937591225920. Its totient is φ = 152792643520.

The previous prime is 399344410111. The next prime is 399344410181. The reversal of 399344410120 is 21014443993.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 217034086 + ... + 217035925.

It is an arithmetic number, because the mean of its divisors is an integer number (29299725810).

Almost surely, 2^399344410120 is an apocalyptic number.

It is an amenable number.

399344410120 is an abundant number, since it is smaller than the sum of its proper divisors (538246815800).

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

399344410120 is a wasteful number, since it uses less digits than its factorization.

399344410120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434070045 (or 434070041 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 40.

The spelling of 399344410120 in words is "three hundred ninety-nine billion, three hundred forty-four million, four hundred ten thousand, one hundred twenty".