1145904 has 20 divisors (see below), whose sum is σ = 2960376. Its totient is φ = 381952.

The previous prime is 1145899. The next prime is 1145971. The reversal of 1145904 is 4095411.

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

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, 11889 + ... + 11984.

2^1145904 is an apocalyptic number.

It is an amenable number.

1145904 is an abundant number, since it is smaller than the sum of its proper divisors (1814472).

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

1145904 is a wasteful number, since it uses less digits than its factorization.

1145904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23884 (or 23878 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1145904 is about 1070.4690560684. The cubic root of 1145904 is about 104.6444207842.

The spelling of 1145904 in words is "one million, one hundred forty-five thousand, nine hundred four".