399907004094 has 32 divisors (see below), whose sum is σ = 957042404640. Its totient is φ = 123048308736.

The previous prime is 399907004093. The next prime is 399907004149. The reversal of 399907004094 is 490400709993.

It is a super-2 number, since 2×399907004094² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 399907004094.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399907004093) 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, 284833347 + ... + 284834750.

It is an arithmetic number, because the mean of its divisors is an integer number (29907575145).

Almost surely, 2^399907004094 is an apocalyptic number.

399907004094 is an abundant number, since it is smaller than the sum of its proper divisors (557135400546).

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

399907004094 is a wasteful number, since it uses less digits than its factorization.

399907004094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569668121 (or 569668115 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 399907004094 in words is "three hundred ninety-nine billion, nine hundred seven million, four thousand, ninety-four".