390120440 has 16 divisors (see below), whose sum is σ = 877771080. Its totient is φ = 156048160.

The previous prime is 390120427. The next prime is 390120463. The reversal of 390120440 is 44021093.

390120440 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4876466 + ... + 4876545.

Almost surely, 2^390120440 is an apocalyptic number.

It is an amenable number.

390120440 is an abundant number, since it is smaller than the sum of its proper divisors (487650640).

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

390120440 is a wasteful number, since it uses less digits than its factorization.

390120440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9753022 (or 9753018 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 390120440 is about 19751.4667809760. The cubic root of 390120440 is about 730.6895592324.

The spelling of 390120440 in words is "three hundred ninety million, one hundred twenty thousand, four hundred forty".