390544480 has 48 divisors (see below), whose sum is σ = 926269344. Its totient is φ = 155607040.

The previous prime is 390544457. The next prime is 390544499. The reversal of 390544480 is 84445093.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37440 + ... + 46720.

It is an arithmetic number, because the mean of its divisors is an integer number (19297278).

Almost surely, 2^390544480 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 390544480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (463134672).

390544480 is an abundant number, since it is smaller than the sum of its proper divisors (535724864).

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

390544480 is a wasteful number, since it uses less digits than its factorization.

390544480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9559 (or 9551 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 390544480 is about 19762.1982582910. The cubic root of 390544480 is about 730.9542034946.

It can be divided in two parts, 39054 and 4480, that added together give a palindrome (43534).

The spelling of 390544480 in words is "three hundred ninety million, five hundred forty-four thousand, four hundred eighty".