1404140402 has 8 divisors (see below), whose sum is σ = 2407097856. Its totient is φ = 601774452.

The previous prime is 1404140383. The next prime is 1404140411. The reversal of 1404140402 is 2040414041.

It is a happy number.

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

It is a super-2 number, since 2×1404140402² = 3943220537057443208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50147858 + ... + 50147885.

It is an arithmetic number, because the mean of its divisors is an integer number (300887232).

Almost surely, 2^1404140402 is an apocalyptic number.

1404140402 is a deficient number, since it is larger than the sum of its proper divisors (1002957454).

1404140402 is a wasteful number, since it uses less digits than its factorization.

1404140402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100295752.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 1404140402 is about 37471.8614696415. The cubic root of 1404140402 is about 1119.7906714443.

Adding to 1404140402 its reverse (2040414041), we get a palindrome (3444554443).

The spelling of 1404140402 in words is "one billion, four hundred four million, one hundred forty thousand, four hundred two".