390260260 has 96 divisors (see below), whose sum is σ = 918352512. Its totient is φ = 138378240.

The previous prime is 390260243. The next prime is 390260261. The reversal of 390260260 is 62062093.

It is not an unprimeable number, because it can be changed into a prime (390260261) 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 31 ways as a sum of consecutive naturals, for example, 748800 + ... + 749320.

It is an arithmetic number, because the mean of its divisors is an integer number (9566172).

Almost surely, 2^390260260 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 390260260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (459176256).

390260260 is an abundant number, since it is smaller than the sum of its proper divisors (528092252).

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

390260260 is a wasteful number, since it uses less digits than its factorization.

390260260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653 (or 651 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 390260260 is about 19755.0059478604. The cubic root of 390260260 is about 730.7768423726.

The spelling of 390260260 in words is "three hundred ninety million, two hundred sixty thousand, two hundred sixty".