390794732669 has 36 divisors (see below), whose sum is σ = 445935189888. Its totient is φ = 339288307200.

The previous prime is 390794732641. The next prime is 390794732677. The reversal of 390794732669 is 966237497093.

It is a de Polignac number, because none of the positive numbers 2^k-390794732669 is a prime.

It is a super-2 number, since 2×390794732669² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390794732969) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1119755507 + ... + 1119755855.

It is an arithmetic number, because the mean of its divisors is an integer number (12387088608).

Almost surely, 2^390794732669 is an apocalyptic number.

It is an amenable number.

390794732669 is a deficient number, since it is larger than the sum of its proper divisors (55140457219).

390794732669 is an frugal number, since it uses more digits than its factorization.

390794732669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 488 counting only the distinct ones).

The product of its (nonzero) digits is 92588832, while the sum is 65.

The spelling of 390794732669 in words is "three hundred ninety billion, seven hundred ninety-four million, seven hundred thirty-two thousand, six hundred sixty-nine".