390260480 has 72 divisors (see below), whose sum is σ = 938196000. Its totient is φ = 155537408.

The previous prime is 390260477. The next prime is 390260489. The reversal of 390260480 is 84062093.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390260489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 651221 + ... + 651819.

It is an arithmetic number, because the mean of its divisors is an integer number (13030500).

Almost surely, 2^390260480 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 390260480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (469098000).

390260480 is an abundant number, since it is smaller than the sum of its proper divisors (547935520).

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

390260480 is an equidigital number, since it uses as much as digits as its factorization.

390260480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129 (or 1115 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 390260480 is about 19755.0115160685. The cubic root of 390260480 is about 730.7769796920.

The spelling of 390260480 in words is "three hundred ninety million, two hundred sixty thousand, four hundred eighty".