390027838 has 16 divisors (see below), whose sum is σ = 621022464. Its totient is φ = 183078400.

The previous prime is 390027817. The next prime is 390027851. The reversal of 390027838 is 838720093.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 390027838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670 + ... + 27937.

It is an arithmetic number, because the mean of its divisors is an integer number (38813904).

Almost surely, 2^390027838 is an apocalyptic number.

390027838 is a deficient number, since it is larger than the sum of its proper divisors (230994626).

390027838 is a wasteful number, since it uses less digits than its factorization.

390027838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29027.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 390027838 is about 19749.1224615171. The cubic root of 390027838 is about 730.6317406187.

The spelling of 390027838 in words is "three hundred ninety million, twenty-seven thousand, eight hundred thirty-eight".