394885010 has 32 divisors (see below), whose sum is σ = 810501552. Its totient is φ = 137226240.

The previous prime is 394885009. The next prime is 394885013. The reversal of 394885010 is 10588493.

It can be written as a sum of positive squares in 8 ways, for example, as 235039561 + 159845449 = 15331^2 + 12643^2 .

It is a super-2 number, since 2×394885010² = 311868342245400200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (394885013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87131 + ... + 91550.

Almost surely, 2^394885010 is an apocalyptic number.

394885010 is an abundant number, since it is smaller than the sum of its proper divisors (415616542).

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

394885010 is a wasteful number, since it uses less digits than its factorization.

394885010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178718.

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 394885010 is about 19871.7138163773. The cubic root of 394885010 is about 733.6521861822.

The spelling of 394885010 in words is "three hundred ninety-four million, eight hundred eighty-five thousand, ten".