399388963294 has 16 divisors (see below), whose sum is σ = 609247474416. Its totient is φ = 196310160000.

The previous prime is 399388963291. The next prime is 399388963319. The reversal of 399388963294 is 492369883993.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (399388963291) 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, 704332 + ... + 1137919.

It is an arithmetic number, because the mean of its divisors is an integer number (38077967151).

Almost surely, 2^399388963294 is an apocalyptic number.

399388963294 is a deficient number, since it is larger than the sum of its proper divisors (209858511122).

399388963294 is a wasteful number, since it uses less digits than its factorization.

399388963294 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844091.

The product of its digits is 544195584, while the sum is 73.

The spelling of 399388963294 in words is "three hundred ninety-nine billion, three hundred eighty-eight million, nine hundred sixty-three thousand, two hundred ninety-four".