1005405504 has 28 divisors (see below), whose sum is σ = 2660135904. Its totient is φ = 335135104.

The previous prime is 1005405497. The next prime is 1005405559. The reversal of 1005405504 is 4055045001.

1005405504 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2618052 + ... + 2618435.

Almost surely, 2^1005405504 is an apocalyptic number.

It is an amenable number.

1005405504 is an abundant number, since it is smaller than the sum of its proper divisors (1654730400).

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

1005405504 is an equidigital number, since it uses as much as digits as its factorization.

1005405504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5236502 (or 5236492 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 1005405504 is about 31708.1299353967. The cubic root of 1005405504 is about 1001.7985977733.

The spelling of 1005405504 in words is "one billion, five million, four hundred five thousand, five hundred four".