394904746 has 4 divisors (see below), whose sum is σ = 592357122. Its totient is φ = 197452372.

The previous prime is 394904701. The next prime is 394904761. The reversal of 394904746 is 647409493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 246333025 + 148571721 = 15695^2 + 12189^2 .

It is a junction number, because it is equal to n+sod(n) for n = 394904696 and 394904705.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98726185 + ... + 98726188.

Almost surely, 2^394904746 is an apocalyptic number.

394904746 is a deficient number, since it is larger than the sum of its proper divisors (197452376).

394904746 is a wasteful number, since it uses less digits than its factorization.

394904746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197452375.

The product of its (nonzero) digits is 653184, while the sum is 46.

The square root of 394904746 is about 19872.2103954241. The cubic root of 394904746 is about 733.6644084055.

The spelling of 394904746 in words is "three hundred ninety-four million, nine hundred four thousand, seven hundred forty-six".