791652640 has 48 divisors (see below), whose sum is σ = 1951604928. Its totient is φ = 302891776.

The previous prime is 791652607. The next prime is 791652647. The reversal of 791652640 is 46256197.

791652640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 791652593 and 791652602.

It is not an unprimeable number, because it can be changed into a prime (791652647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103882 + ... + 111241.

It is an arithmetic number, because the mean of its divisors is an integer number (40658436).

Almost surely, 2^791652640 is an apocalyptic number.

It is an amenable number.

791652640 is an abundant number, since it is smaller than the sum of its proper divisors (1159952288).

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

791652640 is a wasteful number, since it uses less digits than its factorization.

791652640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215161 (or 215153 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 791652640 is about 28136.3224320450. The cubic root of 791652640 is about 925.0777202775.

The spelling of 791652640 in words is "seven hundred ninety-one million, six hundred fifty-two thousand, six hundred forty".