797008140 has 192 divisors, whose sum is σ = 2616606720. Its totient is φ = 201104640.

The previous prime is 797008111. The next prime is 797008141. The reversal of 797008140 is 41800797.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 797008095 and 797008104.

It is not an unprimeable number, because it can be changed into a prime (797008141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 786274 + ... + 787286.

It is an arithmetic number, because the mean of its divisors is an integer number (13628160).

Almost surely, 2^797008140 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 797008140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1308303360).

797008140 is an abundant number, since it is smaller than the sum of its proper divisors (1819598580).

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

797008140 is a wasteful number, since it uses less digits than its factorization.

797008140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1109 (or 1101 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 797008140 is about 28231.3325934147. The cubic root of 797008140 is about 927.1590724179.

The spelling of 797008140 in words is "seven hundred ninety-seven million, eight thousand, one hundred forty".