794437840 has 80 divisors (see below), whose sum is σ = 2114864640. Its totient is φ = 271872000.

The previous prime is 794437817. The next prime is 794437843. The reversal of 794437840 is 48734497.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×794437840² = 1262262963247731200, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (794437843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 419616 + ... + 421504.

It is an arithmetic number, because the mean of its divisors is an integer number (26435808).

Almost surely, 2^794437840 is an apocalyptic number.

794437840 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 794437840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1057432320).

794437840 is an abundant number, since it is smaller than the sum of its proper divisors (1320426800).

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

794437840 is a wasteful number, since it uses less digits than its factorization.

794437840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2660 (or 2654 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 46.

The square root of 794437840 is about 28185.7737165401. The cubic root of 794437840 is about 926.1613229595.

The spelling of 794437840 in words is "seven hundred ninety-four million, four hundred thirty-seven thousand, eight hundred forty".