1404990400 has 84 divisors (see below), whose sum is σ = 3771488520. Its totient is φ = 510899200.

The previous prime is 1404990383. The next prime is 1404990413. The reversal of 1404990400 is 40994041.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22315 + ... + 57514.

Almost surely, 2^1404990400 is an apocalyptic number.

1404990400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404990400 is an abundant number, since it is smaller than the sum of its proper divisors (2366498120).

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

1404990400 is a wasteful number, since it uses less digits than its factorization.

1404990400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79862 (or 79847 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 1404990400 is about 37483.2015708370. The cubic root of 1404990400 is about 1120.0165813872.

The spelling of 1404990400 in words is "one billion, four hundred four million, nine hundred ninety thousand, four hundred".