390730704 has 180 divisors, whose sum is σ = 1272748896. Its totient is φ = 102945024.

The previous prime is 390730657. The next prime is 390730709. The reversal of 390730704 is 407037093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390730709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 396997 + ... + 397979.

Almost surely, 2^390730704 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 390730704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (636374448).

390730704 is an abundant number, since it is smaller than the sum of its proper divisors (882018192).

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

390730704 is a wasteful number, since it uses less digits than its factorization.

390730704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1034 (or 1008 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 33.

The square root of 390730704 is about 19766.9093183532. The cubic root of 390730704 is about 731.0703657523.

Adding to 390730704 its reverse (407037093), we get a palindrome (797767797).

The spelling of 390730704 in words is "three hundred ninety million, seven hundred thirty thousand, seven hundred four".