394907960 has 32 divisors (see below), whose sum is σ = 940811760. Its totient is φ = 148670976.

The previous prime is 394907957. The next prime is 394907963. The reversal of 394907960 is 69709493.

It is an interprime number because it is at equal distance from previous prime (394907957) and next prime (394907963).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394907963) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 289694 + ... + 291053.

Almost surely, 2^394907960 is an apocalyptic number.

It is an amenable number.

394907960 is an abundant number, since it is smaller than the sum of its proper divisors (545903800).

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

394907960 is a wasteful number, since it uses less digits than its factorization.

394907960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580775 (or 580771 counting only the distinct ones).

The product of its (nonzero) digits is 367416, while the sum is 47.

The square root of 394907960 is about 19872.2912619557. The cubic root of 394907960 is about 733.6663987513. Note that the first 3 decimals are identical.

The spelling of 394907960 in words is "three hundred ninety-four million, nine hundred seven thousand, nine hundred sixty".