390258121 has 8 divisors (see below), whose sum is σ = 425952288. Its totient is φ = 354600000.

The previous prime is 390258097. The next prime is 390258149. The reversal of 390258121 is 121852093.

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

It is a cyclic number.

It is not a de Polignac number, because 390258121 - 2¹³ = 390249929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390258161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16881 + ... + 32641.

It is an arithmetic number, because the mean of its divisors is an integer number (53244036).

Almost surely, 2^390258121 is an apocalyptic number.

It is an amenable number.

390258121 is a deficient number, since it is larger than the sum of its proper divisors (35694167).

390258121 is a wasteful number, since it uses less digits than its factorization.

390258121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18023.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 390258121 is about 19754.9518096097. The cubic root of 390258121 is about 730.7755072512.

The spelling of 390258121 in words is "three hundred ninety million, two hundred fifty-eight thousand, one hundred twenty-one".