394129464 has 32 divisors (see below), whose sum is σ = 1037184000. Its totient is φ = 124461792.

The previous prime is 394129457. The next prime is 394129481. The reversal of 394129464 is 464921493.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 431704 + ... + 432615.

It is an arithmetic number, because the mean of its divisors is an integer number (32412000).

Almost surely, 2^394129464 is an apocalyptic number.

It is an amenable number.

394129464 is an abundant number, since it is smaller than the sum of its proper divisors (643054536).

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

394129464 is a wasteful number, since it uses less digits than its factorization.

394129464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 864347 (or 864343 counting only the distinct ones).

The product of its digits is 186624, while the sum is 42.

The square root of 394129464 is about 19852.6941244759. The cubic root of 394129464 is about 733.1839807875.

The spelling of 394129464 in words is "three hundred ninety-four million, one hundred twenty-nine thousand, four hundred sixty-four".