394612911040 has 56 divisors (see below), whose sum is σ = 972074499840. Its totient is φ = 152402224128.

The previous prime is 394612911031. The next prime is 394612911067. The reversal of 394612911040 is 40119216493.

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

It is a junction number, because it is equal to n+sod(n) for n = 394612910984 and 394612911002.

It is a congruent number.

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, 21252192 + ... + 21270751.

Almost surely, 2^394612911040 is an apocalyptic number.

It is an amenable number.

394612911040 is an abundant number, since it is smaller than the sum of its proper divisors (577461588800).

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

394612911040 is a wasteful number, since it uses less digits than its factorization.

394612911040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42522989 (or 42522979 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 40.

The spelling of 394612911040 in words is "three hundred ninety-four billion, six hundred twelve million, nine hundred eleven thousand, forty".