1122864 has 40 divisors (see below), whose sum is σ = 2938800. Its totient is φ = 369408.

The previous prime is 1122857. The next prime is 1122887. The reversal of 1122864 is 4682211.

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

It is a nude number because it is divisible by every one of its digits.

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, 7074 + ... + 7230.

It is an arithmetic number, because the mean of its divisors is an integer number (73470).

2^1122864 is an apocalyptic number.

It is an amenable number.

1122864 is an abundant number, since it is smaller than the sum of its proper divisors (1815936).

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

1122864 is a wasteful number, since it uses less digits than its factorization.

1122864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317 (or 311 counting only the distinct ones).

The product of its digits is 768, while the sum is 24.

The square root of 1122864 is about 1059.6527733178. The cubic root of 1122864 is about 103.9383263529.

The spelling of 1122864 in words is "one million, one hundred twenty-two thousand, eight hundred sixty-four".