1404012402 has 24 divisors (see below), whose sum is σ = 3276029484. Its totient is φ = 432003744.

The previous prime is 1404012383. The next prime is 1404012419. The reversal of 1404012402 is 2042104041.

It can be written as a sum of positive squares in 2 ways, for example, as 1291036761 + 112975641 = 35931^2 + 10629^2 .

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, 2999793 + ... + 3000260.

Almost surely, 2^1404012402 is an apocalyptic number.

1404012402 is an abundant number, since it is smaller than the sum of its proper divisors (1872017082).

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

1404012402 is a wasteful number, since it uses less digits than its factorization.

1404012402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6000074 (or 6000071 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

The square root of 1404012402 is about 37470.1534824719. The cubic root of 1404012402 is about 1119.7566440870.

Adding to 1404012402 its reverse (2042104041), we get a palindrome (3446116443).

The spelling of 1404012402 in words is "one billion, four hundred four million, twelve thousand, four hundred two".