791264720 has 40 divisors (see below), whose sum is σ = 1844881920. Its totient is φ = 315612800.

The previous prime is 791264701. The next prime is 791264723. The reversal of 791264720 is 27462197.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791264723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14945 + ... + 42495.

It is an arithmetic number, because the mean of its divisors is an integer number (46122048).

Almost surely, 2^791264720 is an apocalyptic number.

It is an amenable number.

791264720 is an abundant number, since it is smaller than the sum of its proper divisors (1053617200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

791264720 is a wasteful number, since it uses less digits than its factorization.

791264720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27923 (or 27917 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 38.

The square root of 791264720 is about 28129.4280069823. The cubic root of 791264720 is about 924.9265955873.

The spelling of 791264720 in words is "seven hundred ninety-one million, two hundred sixty-four thousand, seven hundred twenty".