1402663839 has 8 divisors (see below), whose sum is σ = 1870465200. Its totient is φ = 934985856.

The previous prime is 1402663831. The next prime is 1402663841. The reversal of 1402663839 is 9383662041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1402663839 - 2³ = 1402663831 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1402663839.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1402663831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129 + ... + 52965.

It is an arithmetic number, because the mean of its divisors is an integer number (233808150).

Almost surely, 2^1402663839 is an apocalyptic number.

1402663839 is a deficient number, since it is larger than the sum of its proper divisors (467801361).

1402663839 is an equidigital number, since it uses as much as digits as its factorization.

1402663839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61689.

The product of its (nonzero) digits is 186624, while the sum is 42.

The square root of 1402663839 is about 37452.1539967997. The cubic root of 1402663839 is about 1119.3980180734.

The spelling of 1402663839 in words is "one billion, four hundred two million, six hundred sixty-three thousand, eight hundred thirty-nine".