1408555904 has 64 divisors (see below), whose sum is σ = 3212265600. Its totient is φ = 602672640.

The previous prime is 1408555891. The next prime is 1408555913. The reversal of 1408555904 is 4095558041.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 869207 + ... + 870825.

It is an arithmetic number, because the mean of its divisors is an integer number (50191650).

Almost surely, 2^1408555904 is an apocalyptic number.

1408555904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1408555904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606132800).

1408555904 is an abundant number, since it is smaller than the sum of its proper divisors (1803709696).

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

1408555904 is an equidigital number, since it uses as much as digits as its factorization.

1408555904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611 (or 2599 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 41.

The square root of 1408555904 is about 37530.7327932722. The cubic root of 1408555904 is about 1120.9632189969.

The spelling of 1408555904 in words is "one billion, four hundred eight million, five hundred fifty-five thousand, nine hundred four".