920660372 has 12 divisors (see below), whose sum is σ = 1613289300. Its totient is φ = 459720576.

The previous prime is 920660339. The next prime is 920660383. The reversal of 920660372 is 273066029.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 627702916 + 292957456 = 25054^2 + 17116^2 .

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 148997 + ... + 155052.

It is an arithmetic number, because the mean of its divisors is an integer number (134440775).

Almost surely, 2^920660372 is an apocalyptic number.

It is an amenable number.

920660372 is a deficient number, since it is larger than the sum of its proper divisors (692628928).

920660372 is a wasteful number, since it uses less digits than its factorization.

920660372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304810 (or 304808 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 920660372 is about 30342.3857334917. The cubic root of 920660372 is about 972.8214772394.

The spelling of 920660372 in words is "nine hundred twenty million, six hundred sixty thousand, three hundred seventy-two".