390629135 has 24 divisors (see below), whose sum is σ = 512203824. Its totient is φ = 285841920.

The previous prime is 390629131. The next prime is 390629137. The reversal of 390629135 is 531926093.

It is not a de Polignac number, because 390629135 - 2² = 390629131 is a prime.

It is a super-2 number, since 2×390629135² = 305182242221696450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390629131) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 93440 + ... + 97530.

It is an arithmetic number, because the mean of its divisors is an integer number (21341826).

Almost surely, 2^390629135 is an apocalyptic number.

390629135 is a deficient number, since it is larger than the sum of its proper divisors (121574689).

390629135 is a wasteful number, since it uses less digits than its factorization.

390629135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4235 (or 4222 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 390629135 is about 19764.3399839205. The cubic root of 390629135 is about 731.0070139176.

The spelling of 390629135 in words is "three hundred ninety million, six hundred twenty-nine thousand, one hundred thirty-five".