1402231986 has 24 divisors (see below), whose sum is σ = 3150695184. Its totient is φ = 467410500.

The previous prime is 1402231973. The next prime is 1402231993. The reversal of 1402231986 is 6891322041.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 1402231986.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1442140 + ... + 1443111.

It is an arithmetic number, because the mean of its divisors is an integer number (131278966).

Almost surely, 2^1402231986 is an apocalyptic number.

1402231986 is an abundant number, since it is smaller than the sum of its proper divisors (1748463198).

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

1402231986 is an equidigital number, since it uses as much as digits as its factorization.

1402231986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885268 (or 2885256 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 1402231986 is about 37446.3881569371. The cubic root of 1402231986 is about 1119.2831259663.

The spelling of 1402231986 in words is "one billion, four hundred two million, two hundred thirty-one thousand, nine hundred eighty-six".