390371055 has 16 divisors (see below), whose sum is σ = 657467520. Its totient is φ = 197239968.

The previous prime is 390371041. The next prime is 390371083. The reversal of 390371055 is 550173093.

It is not a de Polignac number, because 390371055 - 2⁴ = 390371039 is a prime.

It is a congruent number.

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, 684577 + ... + 685146.

It is an arithmetic number, because the mean of its divisors is an integer number (41091720).

Almost surely, 2^390371055 is an apocalyptic number.

390371055 is a deficient number, since it is larger than the sum of its proper divisors (267096465).

390371055 is a wasteful number, since it uses less digits than its factorization.

390371055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1369750.

The product of its (nonzero) digits is 14175, while the sum is 33.

The square root of 390371055 is about 19757.8099747922. The cubic root of 390371055 is about 730.8459917477.

The spelling of 390371055 in words is "three hundred ninety million, three hundred seventy-one thousand, fifty-five".