1138824 has 24 divisors (see below), whose sum is σ = 3084510. Its totient is φ = 379584.

The previous prime is 1138793. The next prime is 1138829. The reversal of 1138824 is 4288311.

It can be written as a sum of positive squares in only one way, i.e., 756900 + 381924 = 870^2 + 618^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is not an unprimeable number, because it can be changed into a prime (1138829) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7837 + ... + 7980.

2^1138824 is an apocalyptic number.

It is an amenable number.

1138824 is an abundant number, since it is smaller than the sum of its proper divisors (1945686).

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

1138824 is a wasteful number, since it uses less digits than its factorization.

1138824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15829 (or 15822 counting only the distinct ones).

The product of its digits is 1536, while the sum is 27.

The square root of 1138824 is about 1067.1569706468. The cubic root of 1138824 is about 104.4284592339.

The spelling of 1138824 in words is "one million, one hundred thirty-eight thousand, eight hundred twenty-four".