394430284488 has 32 divisors (see below), whose sum is σ = 988301642400. Its totient is φ = 131179970688.

The previous prime is 394430284471. The next prime is 394430284499. The reversal of 394430284488 is 884482034493.

It is a super-2 number, since 2×394430284488² (a number of 24 digits) contains 22 as substring.

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, 18538573 + ... + 18559836.

It is an arithmetic number, because the mean of its divisors is an integer number (30884426325).

Almost surely, 2^394430284488 is an apocalyptic number.

It is an amenable number.

394430284488 is an abundant number, since it is smaller than the sum of its proper divisors (593871357912).

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

394430284488 is a wasteful number, since it uses less digits than its factorization.

394430284488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37098861 (or 37098857 counting only the distinct ones).

The product of its (nonzero) digits is 21233664, while the sum is 57.

The spelling of 394430284488 in words is "three hundred ninety-four billion, four hundred thirty million, two hundred eighty-four thousand, four hundred eighty-eight".