394142488 has 16 divisors (see below), whose sum is σ = 739642680. Its totient is φ = 196904448.

The previous prime is 394142473. The next prime is 394142521. The reversal of 394142488 is 884241493.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10506 + ... + 29977.

Almost surely, 2^394142488 is an apocalyptic number.

It is an amenable number.

394142488 is a deficient number, since it is larger than the sum of its proper divisors (345500192).

394142488 is a wasteful number, since it uses less digits than its factorization.

394142488 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41706 (or 41702 counting only the distinct ones).

The product of its digits is 221184, while the sum is 43.

The square root of 394142488 is about 19853.0221376998. The cubic root of 394142488 is about 733.1920567150.

The spelling of 394142488 in words is "three hundred ninety-four million, one hundred forty-two thousand, four hundred eighty-eight".