394412422320 has 120 divisors (see below), whose sum is σ = 1513792459296. Its totient is φ = 90151409664.

The previous prime is 394412422303. The next prime is 394412422331. The reversal of 394412422320 is 23224214493.

394412422320 is a `hidden beast` number, since 3 + 9 + 4 + 412 + 4 + 2 + 232 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×394412422320² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39123177 + ... + 39133256.

Almost surely, 2^394412422320 is an apocalyptic number.

394412422320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

394412422320 is an abundant number, since it is smaller than the sum of its proper divisors (1119380036976).

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

394412422320 is a wasteful number, since it uses less digits than its factorization.

394412422320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78256459 (or 78256450 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 36.

It can be divided in two parts, 39441 and 2422320, that added together give a square (2461761 = 1569²).

The spelling of 394412422320 in words is "three hundred ninety-four billion, four hundred twelve million, four hundred twenty-two thousand, three hundred twenty".