1404666340 has 72 divisors (see below), whose sum is σ = 3743373312. Its totient is φ = 437814720.

The previous prime is 1404666317. The next prime is 1404666349. The reversal of 1404666340 is 436664041.

It is a junction number, because it is equal to n+sod(n) for n = 1404666296 and 1404666305.

It is not an unprimeable number, because it can be changed into a prime (1404666349) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 54372 + ... + 75931.

It is an arithmetic number, because the mean of its divisors is an integer number (51991296).

Almost surely, 2^1404666340 is an apocalyptic number.

1404666340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1404666340 is an abundant number, since it is smaller than the sum of its proper divisors (2338706972).

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

1404666340 is a wasteful number, since it uses less digits than its factorization.

1404666340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130337 (or 130328 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

The square root of 1404666340 is about 37478.8785851445. The cubic root of 1404666340 is about 1119.9304644330.

The spelling of 1404666340 in words is "one billion, four hundred four million, six hundred sixty-six thousand, three hundred forty".