1139628 has 24 divisors (see below), whose sum is σ = 3039232. Its totient is φ = 325584.

The previous prime is 1139623. The next prime is 1139669. The reversal of 1139628 is 8269311.

It is a junction number, because it is equal to n+sod(n) for n = 1139595 and 1139604.

It is not an unprimeable number, because it can be changed into a prime (1139623) 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, 6700 + ... + 6867.

2^1139628 is an apocalyptic number.

It is an amenable number.

1139628 is an abundant number, since it is smaller than the sum of its proper divisors (1899604).

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

1139628 is a wasteful number, since it uses less digits than its factorization.

1139628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13581 (or 13579 counting only the distinct ones).

The product of its digits is 2592, while the sum is 30.

The square root of 1139628 is about 1067.5336060284. The cubic root of 1139628 is about 104.4530286525.

The spelling of 1139628 in words is "one million, one hundred thirty-nine thousand, six hundred twenty-eight".