1404840936 has 32 divisors (see below), whose sum is σ = 3521295360. Its totient is φ = 467054592.

The previous prime is 1404840929. The next prime is 1404840959. The reversal of 1404840936 is 6390484041.

It is a happy number.

It is a super-2 number, since 2×1404840936² = 3947156110922712192, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1404840894 and 1404840903.

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 7 ways as a sum of consecutive naturals, for example, 67225 + ... + 85608.

It is an arithmetic number, because the mean of its divisors is an integer number (110040480).

Almost surely, 2^1404840936 is an apocalyptic number.

It is an amenable number.

1404840936 is an abundant number, since it is smaller than the sum of its proper divisors (2116454424).

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

1404840936 is a wasteful number, since it uses less digits than its factorization.

1404840936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153225 (or 153221 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 1404840936 is about 37481.2077713619. The cubic root of 1404840936 is about 1119.9768638928.

The spelling of 1404840936 in words is "one billion, four hundred four million, eight hundred forty thousand, nine hundred thirty-six".