1402311402 has 24 divisors (see below), whose sum is σ = 3217068036. Its totient is φ = 439940736.

The previous prime is 1402311307. The next prime is 1402311413. The reversal of 1402311402 is 2041132041.

It can be written as a sum of positive squares in 2 ways, for example, as 1079713881 + 322597521 = 32859^2 + 17961^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

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, 2291053 + ... + 2291664.

Almost surely, 2^1402311402 is an apocalyptic number.

1402311402 is an abundant number, since it is smaller than the sum of its proper divisors (1814756634).

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

1402311402 is a wasteful number, since it uses less digits than its factorization.

1402311402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4582742 (or 4582739 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 1402311402 is about 37447.4485379178. The cubic root of 1402311402 is about 1119.3042559247.

Adding to 1402311402 its reverse (2041132041), we get a palindrome (3443443443).

It can be divided in two parts, 14023 and 11402, that added together give a triangular number (25425 = T₂₂₅).

The spelling of 1402311402 in words is "one billion, four hundred two million, three hundred eleven thousand, four hundred two".