390284401 has 16 divisors (see below), whose sum is σ = 439447680. Its totient is φ = 343918080.

The previous prime is 390284393. The next prime is 390284423. The reversal of 390284401 is 104482093.

It is not a de Polignac number, because 390284401 - 2³ = 390284393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390284441) 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 15 ways as a sum of consecutive naturals, for example, 205665 + ... + 207553.

It is an arithmetic number, because the mean of its divisors is an integer number (27465480).

Almost surely, 2^390284401 is an apocalyptic number.

It is an amenable number.

390284401 is a deficient number, since it is larger than the sum of its proper divisors (49163279).

390284401 is a wasteful number, since it uses less digits than its factorization.

390284401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2616.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 390284401 is about 19755.6169480986. The cubic root of 390284401 is about 730.7919103685.

The spelling of 390284401 in words is "three hundred ninety million, two hundred eighty-four thousand, four hundred one".