797138340 has 48 divisors (see below), whose sum is σ = 2303992320. Its totient is φ = 205712640.

The previous prime is 797138317. The next prime is 797138351. The reversal of 797138340 is 43831797.

It is a junction number, because it is equal to n+sod(n) for n = 797138292 and 797138301.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212425 + ... + 216144.

It is an arithmetic number, because the mean of its divisors is an integer number (47999840).

Almost surely, 2^797138340 is an apocalyptic number.

It is an amenable number.

797138340 is an abundant number, since it is smaller than the sum of its proper divisors (1506853980).

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

797138340 is a wasteful number, since it uses less digits than its factorization.

797138340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428612 (or 428610 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 797138340 is about 28233.6384477807. The cubic root of 797138340 is about 927.2095568619.

The spelling of 797138340 in words is "seven hundred ninety-seven million, one hundred thirty-eight thousand, three hundred forty".