394408052 has 24 divisors (see below), whose sum is σ = 697250400. Its totient is φ = 195202656.

The previous prime is 394408031. The next prime is 394408073. The reversal of 394408052 is 250804493.

It is an interprime number because it is at equal distance from previous prime (394408031) and next prime (394408073).

It is a super-2 number, since 2×394408052² = 311115422964869408, which contains 22 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, 232118 + ... + 233810.

It is an arithmetic number, because the mean of its divisors is an integer number (29052100).

Almost surely, 2^394408052 is an apocalyptic number.

It is an amenable number.

394408052 is a deficient number, since it is larger than the sum of its proper divisors (302842348).

394408052 is a wasteful number, since it uses less digits than its factorization.

394408052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2255 (or 2253 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 394408052 is about 19859.7092627259. The cubic root of 394408052 is about 733.3566889715.

The spelling of 394408052 in words is "three hundred ninety-four million, four hundred eight thousand, fifty-two".