1142904 has 32 divisors (see below), whose sum is σ = 3265920. Its totient is φ = 326496.

The previous prime is 1142891. The next prime is 1142909. The reversal of 1142904 is 4092411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142909) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3234 + ... + 3569.

It is an arithmetic number, because the mean of its divisors is an integer number (102060).

2^1142904 is an apocalyptic number.

1142904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1142904 is an abundant number, since it is smaller than the sum of its proper divisors (2123016).

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

1142904 is a wasteful number, since it uses less digits than its factorization.

1142904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819 (or 6815 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

The square root of 1142904 is about 1069.0668828469. The cubic root of 1142904 is about 104.5530205672.

The spelling of 1142904 in words is "one million, one hundred forty-two thousand, nine hundred four".