862900040 has 16 divisors (see below), whose sum is σ = 1941525180. Its totient is φ = 345160000.

The previous prime is 862900037. The next prime is 862900079. The reversal of 862900040 is 40009268.

It can be written as a sum of positive squares in 2 ways, for example, as 837639364 + 25260676 = 28942^2 + 5026^2 .

It is a junction number, because it is equal to n+sod(n) for n = 862899976 and 862900012.

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, 10786211 + ... + 10786290.

Almost surely, 2^862900040 is an apocalyptic number.

It is an amenable number.

862900040 is an abundant number, since it is smaller than the sum of its proper divisors (1078625140).

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

862900040 is a wasteful number, since it uses less digits than its factorization.

862900040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21572512 (or 21572508 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 862900040 is about 29375.1602548820. The cubic root of 862900040 is about 952.0362748930.

The spelling of 862900040 in words is "eight hundred sixty-two million, nine hundred thousand, forty".