390389401 has 8 divisors (see below), whose sum is σ = 396849824. Its totient is φ = 383978880.

The previous prime is 390389383. The next prime is 390389429. The reversal of 390389401 is 104983093.

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 390389401 - 2²³ = 382000793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390369401) 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, 3466 + ... + 28156.

It is an arithmetic number, because the mean of its divisors is an integer number (49606228).

Almost surely, 2^390389401 is an apocalyptic number.

It is an amenable number.

390389401 is a deficient number, since it is larger than the sum of its proper divisors (6460423).

390389401 is a wasteful number, since it uses less digits than its factorization.

390389401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24951.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 390389401 is about 19758.2742414412. The cubic root of 390389401 is about 730.8574405905.

The spelling of 390389401 in words is "three hundred ninety million, three hundred eighty-nine thousand, four hundred one".