1404120312 has 64 divisors (see below), whose sum is σ = 4457529600. Its totient is φ = 401176800.

The previous prime is 1404120269. The next prime is 1404120343. The reversal of 1404120312 is 2130214041.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 462814 + ... + 465837.

It is an arithmetic number, because the mean of its divisors is an integer number (69648900).

Almost surely, 2^1404120312 is an apocalyptic number.

1404120312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1404120312 is an abundant number, since it is smaller than the sum of its proper divisors (3053409288).

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

1404120312 is a wasteful number, since it uses less digits than its factorization.

1404120312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928673 (or 928663 counting only the distinct ones).

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

The square root of 1404120312 is about 37471.5934008683. The cubic root of 1404120312 is about 1119.7853308811.

Adding to 1404120312 its reverse (2130214041), we get a palindrome (3534334353).

The spelling of 1404120312 in words is "one billion, four hundred four million, one hundred twenty thousand, three hundred twelve".