394322152 has 16 divisors (see below), whose sum is σ = 844976160. Its totient is φ = 168995184.

The previous prime is 394322119. The next prime is 394322153. The reversal of 394322152 is 251223493.

It is a super-2 number, since 2×394322152² = 310979919115822208, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394322153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3520678 + ... + 3520789.

It is an arithmetic number, because the mean of its divisors is an integer number (52811010).

Almost surely, 2^394322152 is an apocalyptic number.

It is an amenable number.

394322152 is an abundant number, since it is smaller than the sum of its proper divisors (450654008).

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

394322152 is a wasteful number, since it uses less digits than its factorization.

394322152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7041480 (or 7041476 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 394322152 is about 19857.5464748292. The cubic root of 394322152 is about 733.3034446955.

The spelling of 394322152 in words is "three hundred ninety-four million, three hundred twenty-two thousand, one hundred fifty-two".