390055250 has 32 divisors (see below), whose sum is σ = 786357936. Its totient is φ = 144019200.

The previous prime is 390055241. The next prime is 390055261. The reversal of 390055250 is 52550093.

It can be written as a sum of positive squares in 8 ways, for example, as 25512601 + 364542649 = 5051^2 + 19093^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56759 + ... + 63258.

Almost surely, 2^390055250 is an apocalyptic number.

390055250 is an abundant number, since it is smaller than the sum of its proper divisors (396302686).

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

390055250 is a wasteful number, since it uses less digits than its factorization.

390055250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120047 (or 120037 counting only the distinct ones).

The product of its (nonzero) digits is 6750, while the sum is 29.

The square root of 390055250 is about 19749.8164548433. The cubic root of 390055250 is about 730.6488570107.

The spelling of 390055250 in words is "three hundred ninety million, fifty-five thousand, two hundred fifty".