791214644 has 72 divisors (see below), whose sum is σ = 1620386880. Its totient is φ = 336821760.

The previous prime is 791214631. The next prime is 791214649. The reversal of 791214644 is 446412197.

It is a super-2 number, since 2×791214644² = 1252041225760093472, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is a junction number, because it is equal to n+sod(n) for n = 791214598 and 791214607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (791214649) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891569 + ... + 892455.

Almost surely, 2^791214644 is an apocalyptic number.

It is an amenable number.

791214644 is an abundant number, since it is smaller than the sum of its proper divisors (829172236).

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

791214644 is a wasteful number, since it uses less digits than its factorization.

791214644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1029 (or 1016 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 791214644 is about 28128.5378930367. The cubic root of 791214644 is about 924.9070835327.

The spelling of 791214644 in words is "seven hundred ninety-one million, two hundred fourteen thousand, six hundred forty-four".