390044970 has 80 divisors (see below), whose sum is σ = 1198631808. Its totient is φ = 89151840.

The previous prime is 390044969. The next prime is 390045011. The reversal of 390044970 is 79440093.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 28726 + ... + 40065.

Almost surely, 2^390044970 is an apocalyptic number.

390044970 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

390044970 is an abundant number, since it is smaller than the sum of its proper divisors (808586838).

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

390044970 is a wasteful number, since it uses less digits than its factorization.

390044970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68817 (or 68808 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 390044970 is about 19749.5561975453. The cubic root of 390044970 is about 730.6424381455.

The spelling of 390044970 in words is "three hundred ninety million, forty-four thousand, nine hundred seventy".