390553641 has 12 divisors (see below), whose sum is σ = 564677568. Its totient is φ = 260117784.

The previous prime is 390553621. The next prime is 390553687. The reversal of 390553641 is 146355093.

390553641 is a `hidden beast` number, since 3 + 9 + 0 + 5 + 5 + 3 + 641 = 666.

It is not a de Polignac number, because 390553641 - 2⁵ = 390553609 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 390553596 and 390553605.

It is not an unprimeable number, because it can be changed into a prime (390553621) 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 11 ways as a sum of consecutive naturals, for example, 10845 + ... + 29978.

It is an arithmetic number, because the mean of its divisors is an integer number (47056464).

Almost surely, 2^390553641 is an apocalyptic number.

It is an amenable number.

390553641 is a deficient number, since it is larger than the sum of its proper divisors (174123927).

390553641 is a wasteful number, since it uses less digits than its factorization.

390553641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41892 (or 41889 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 390553641 is about 19762.4300378268. The cubic root of 390553641 is about 730.9599187796.

The spelling of 390553641 in words is "three hundred ninety million, five hundred fifty-three thousand, six hundred forty-one".