390033220 has 24 divisors (see below), whose sum is σ = 838119744. Its totient is φ = 152384736.

The previous prime is 390033211. The next prime is 390033221. The reversal of 390033220 is 22330093.

It is a junction number, because it is equal to n+sod(n) for n = 390033191 and 390033200.

It is not an unprimeable number, because it can be changed into a prime (390033221) 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, 225904 + ... + 227623.

It is an arithmetic number, because the mean of its divisors is an integer number (34921656).

Almost surely, 2^390033220 is an apocalyptic number.

It is an amenable number.

390033220 is an abundant number, since it is smaller than the sum of its proper divisors (448086524).

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

390033220 is a wasteful number, since it uses less digits than its factorization.

390033220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453579 (or 453577 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 22.

The square root of 390033220 is about 19749.2587202659. The cubic root of 390033220 is about 730.6351012694.

The spelling of 390033220 in words is "three hundred ninety million, thirty-three thousand, two hundred twenty".