1404121344 has 36 divisors (see below), whose sum is σ = 3737012496. Its totient is φ = 468040192.

The previous prime is 1404121309. The next prime is 1404121349. The reversal of 1404121344 is 4431214041.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (1404121349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 913374 + ... + 914909.

Almost surely, 2^1404121344 is an apocalyptic number.

It is an amenable number.

1404121344 is an abundant number, since it is smaller than the sum of its proper divisors (2332891152).

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

1404121344 is an equidigital number, since it uses as much as digits as its factorization.

1404121344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1828302 (or 1828288 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 1404121344 is about 37471.6071712970. The cubic root of 1404121344 is about 1119.7856052208.

Adding to 1404121344 its reverse (4431214041), we get a palindrome (5835335385).

The spelling of 1404121344 in words is "one billion, four hundred four million, one hundred twenty-one thousand, three hundred forty-four".