394488724 has 12 divisors (see below), whose sum is σ = 788977504. Its totient is φ = 169066584.

The previous prime is 394488701. The next prime is 394488727. The reversal of 394488724 is 427884493.

It is a happy number.

394488724 is an admirable number.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394488727) 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, 7044414 + ... + 7044469.

Almost surely, 2^394488724 is an apocalyptic number.

It is an amenable number.

394488724 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

394488724 is a wasteful number, since it uses less digits than its factorization.

394488724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14088894 (or 14088892 counting only the distinct ones).

The product of its digits is 1548288, while the sum is 49.

The square root of 394488724 is about 19861.7402057322. The cubic root of 394488724 is about 733.4066856837.

The spelling of 394488724 in words is "three hundred ninety-four million, four hundred eighty-eight thousand, seven hundred twenty-four".