390193266 has 32 divisors (see below), whose sum is σ = 807554880. Its totient is φ = 125604864.

The previous prime is 390193207. The next prime is 390193277. The reversal of 390193266 is 662391093.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 14466 + ... + 31458.

It is an arithmetic number, because the mean of its divisors is an integer number (25236090).

Almost surely, 2^390193266 is an apocalyptic number.

390193266 is an abundant number, since it is smaller than the sum of its proper divisors (417361614).

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

390193266 is a wasteful number, since it uses less digits than its factorization.

390193266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17130.

The product of its (nonzero) digits is 52488, while the sum is 39.

The square root of 390193266 is about 19753.3102542333. The cubic root of 390193266 is about 730.7350237279.

The spelling of 390193266 in words is "three hundred ninety million, one hundred ninety-three thousand, two hundred sixty-six".