1109459904 has 56 divisors (see below), whose sum is σ = 3354799488. Its totient is φ = 316988160.

The previous prime is 1109459891. The next prime is 1109459927. The reversal of 1109459904 is 4099549011.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 411402 + ... + 414089.

Almost surely, 2^1109459904 is an apocalyptic number.

1109459904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1109459904 is an abundant number, since it is smaller than the sum of its proper divisors (2245339584).

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

1109459904 is an equidigital number, since it uses as much as digits as its factorization.

1109459904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 825513 (or 825503 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 42.

The square root of 1109459904 is about 33308.5560179363. The cubic root of 1109459904 is about 1035.2308458456.

The spelling of 1109459904 in words is "one billion, one hundred nine million, four hundred fifty-nine thousand, nine hundred four".