390353081 has 4 divisors (see below), whose sum is σ = 410898000. Its totient is φ = 369808164.

The previous prime is 390353053. The next prime is 390353111. The reversal of 390353081 is 180353093.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 390353081 - 2¹⁸ = 390090937 is a prime.

It is a super-2 number, since 2×390353081² = 304751055692385122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390355081) 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 3 ways as a sum of consecutive naturals, for example, 10272431 + ... + 10272468.

It is an arithmetic number, because the mean of its divisors is an integer number (102724500).

Almost surely, 2^390353081 is an apocalyptic number.

It is an amenable number.

390353081 is a deficient number, since it is larger than the sum of its proper divisors (20544919).

390353081 is a wasteful number, since it uses less digits than its factorization.

390353081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20544918.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 390353081 is about 19757.3551114515. The cubic root of 390353081 is about 730.8347747041.

The spelling of 390353081 in words is "three hundred ninety million, three hundred fifty-three thousand, eighty-one".