390225951 has 32 divisors (see below), whose sum is σ = 590976000. Its totient is φ = 254427264.

The previous prime is 390225949. The next prime is 390225961. The reversal of 390225951 is 159522093.

It is a happy number.

It is not a de Polignac number, because 390225951 - 2¹ = 390225949 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390225931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 240220 + ... + 241838.

It is an arithmetic number, because the mean of its divisors is an integer number (18468000).

Almost surely, 2^390225951 is an apocalyptic number.

390225951 is a deficient number, since it is larger than the sum of its proper divisors (200750049).

390225951 is a wasteful number, since it uses less digits than its factorization.

390225951 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1820 (or 1814 counting only the distinct ones).

The product of its (nonzero) digits is 24300, while the sum is 36.

The square root of 390225951 is about 19754.1375665960. The cubic root of 390225951 is about 730.7554267858.

The spelling of 390225951 in words is "three hundred ninety million, two hundred twenty-five thousand, nine hundred fifty-one".