394264838742 has 16 divisors (see below), whose sum is σ = 788537012592. Its totient is φ = 131420390400.

The previous prime is 394264838731. The next prime is 394264838789. The reversal of 394264838742 is 247838462493.

It is a happy number.

It is a super-3 number, since 3×394264838742³ (a number of 36 digits) contains 333 as substring.

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, 599178 + ... + 1071234.

It is an arithmetic number, because the mean of its divisors is an integer number (49283563287).

Almost surely, 2^394264838742 is an apocalyptic number.

394264838742 is an abundant number, since it is smaller than the sum of its proper divisors (394272173850).

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

394264838742 is a wasteful number, since it uses less digits than its factorization.

394264838742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 611263.

The product of its digits is 55738368, while the sum is 60.

The spelling of 394264838742 in words is "three hundred ninety-four billion, two hundred sixty-four million, eight hundred thirty-eight thousand, seven hundred forty-two".