807724140 has 48 divisors (see below), whose sum is σ = 2309755392. Its totient is φ = 210809536.

The previous prime is 807724139. The next prime is 807724147. The reversal of 807724140 is 41427708.

It is not an unprimeable number, because it can be changed into a prime (807724147) 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, 140394 + ... + 146033.

It is an arithmetic number, because the mean of its divisors is an integer number (48119904).

Almost surely, 2^807724140 is an apocalyptic number.

It is an amenable number.

807724140 is an abundant number, since it is smaller than the sum of its proper divisors (1502031252).

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

807724140 is a wasteful number, since it uses less digits than its factorization.

807724140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286486 (or 286484 counting only the distinct ones).

The product of its (nonzero) digits is 12544, while the sum is 33.

The square root of 807724140 is about 28420.4880324037. The cubic root of 807724140 is about 931.2958925779.

The spelling of 807724140 in words is "eight hundred seven million, seven hundred twenty-four thousand, one hundred forty".