394537401 has 12 divisors (see below), whose sum is σ = 585290212. Its totient is φ = 255915936.

The previous prime is 394537397. The next prime is 394537421. The reversal of 394537401 is 104735493.

It can be written as a sum of positive squares in 2 ways, for example, as 154256400 + 240281001 = 12420^2 + 15501^2 .

It is not a de Polignac number, because 394537401 - 2² = 394537397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394537421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 592066 + ... + 592731.

Almost surely, 2^394537401 is an apocalyptic number.

It is an amenable number.

394537401 is a deficient number, since it is larger than the sum of its proper divisors (190752811).

394537401 is a wasteful number, since it uses less digits than its factorization.

394537401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184840 (or 1184837 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 394537401 is about 19862.9655640843. The cubic root of 394537401 is about 733.4368501023.

The spelling of 394537401 in words is "three hundred ninety-four million, five hundred thirty-seven thousand, four hundred one".