867983240 has 16 divisors (see below), whose sum is σ = 1952962380. Its totient is φ = 347193280.

The previous prime is 867983239. The next prime is 867983261. The reversal of 867983240 is 42389768.

It can be written as a sum of positive squares in 2 ways, for example, as 826792516 + 41190724 = 28754^2 + 6418^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10849751 + ... + 10849830.

Almost surely, 2^867983240 is an apocalyptic number.

It is an amenable number.

867983240 is an abundant number, since it is smaller than the sum of its proper divisors (1084979140).

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

867983240 is a wasteful number, since it uses less digits than its factorization.

867983240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21699592 (or 21699588 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 867983240 is about 29461.5552882057. Note that the first 3 decimals coincide. The cubic root of 867983240 is about 953.9020449186.

It can be divided in two parts, 8679 and 83240, that added together give a palindrome (91919).

The spelling of 867983240 in words is "eight hundred sixty-seven million, nine hundred eighty-three thousand, two hundred forty".