1139824 has 20 divisors (see below), whose sum is σ = 2524144. Its totient is φ = 488448.

The previous prime is 1139819. The next prime is 1139843. The reversal of 1139824 is 4289311.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1139792 and 1139801.

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, 4977 + ... + 5200.

2^1139824 is an apocalyptic number.

1139824 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1139824 is an abundant number, since it is smaller than the sum of its proper divisors (1384320).

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

1139824 is a wasteful number, since it uses less digits than its factorization.

1139824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10192 (or 10186 counting only the distinct ones).

The product of its digits is 1728, while the sum is 28.

The square root of 1139824 is about 1067.6254024704. The cubic root of 1139824 is about 104.4590164602.

The spelling of 1139824 in words is "one million, one hundred thirty-nine thousand, eight hundred twenty-four".