390348969 has 8 divisors (see below), whose sum is σ = 532569312. Its totient is φ = 254180640.

The previous prime is 390348949. The next prime is 390348971. The reversal of 390348969 is 969843093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 390348969 - 2⁹ = 390348457 is a prime.

It is a super-2 number, since 2×390348969² = 304744635198725922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (390348919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1512852 + ... + 1513109.

It is an arithmetic number, because the mean of its divisors is an integer number (66571164).

Almost surely, 2^390348969 is an apocalyptic number.

It is an amenable number.

390348969 is a deficient number, since it is larger than the sum of its proper divisors (142220343).

390348969 is a wasteful number, since it uses less digits than its factorization.

390348969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3026007.

The product of its (nonzero) digits is 1259712, while the sum is 51.

The square root of 390348969 is about 19757.2510486657. The cubic root of 390348969 is about 730.8322084777.

The spelling of 390348969 in words is "three hundred ninety million, three hundred forty-eight thousand, nine hundred sixty-nine".