864196740 has 72 divisors (see below), whose sum is σ = 2859712128. Its totient is φ = 209501760.

The previous prime is 864196727. The next prime is 864196759. The reversal of 864196740 is 47691468.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 216252 + ... + 220211.

It is an arithmetic number, because the mean of its divisors is an integer number (39718224).

Almost surely, 2^864196740 is an apocalyptic number.

It is an amenable number.

864196740 is an abundant number, since it is smaller than the sum of its proper divisors (1995515388).

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

864196740 is a wasteful number, since it uses less digits than its factorization.

864196740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436489 (or 436484 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 45.

The square root of 864196740 is about 29397.2233382679. The cubic root of 864196740 is about 952.5129185840.

The spelling of 864196740 in words is "eight hundred sixty-four million, one hundred ninety-six thousand, seven hundred forty".