390366460 has 48 divisors (see below), whose sum is σ = 904387680. Its totient is φ = 140349440.

The previous prime is 390366439. The next prime is 390366463. The reversal of 390366460 is 64663093.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390366463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9612 + ... + 29548.

It is an arithmetic number, because the mean of its divisors is an integer number (18841410).

Almost surely, 2^390366460 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 390366460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (452193840).

390366460 is an abundant number, since it is smaller than the sum of its proper divisors (514021220).

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

390366460 is a wasteful number, since it uses less digits than its factorization.

390366460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20046 (or 20044 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 37.

The square root of 390366460 is about 19757.6936913193. The cubic root of 390366460 is about 730.8431241764.

The spelling of 390366460 in words is "three hundred ninety million, three hundred sixty-six thousand, four hundred sixty".