1139430724 has 6 divisors (see below), whose sum is σ = 1994003774. Its totient is φ = 569715360.

The previous prime is 1139430707. The next prime is 1139430739. The reversal of 1139430724 is 4270349311.

It can be written as a sum of positive squares in only one way, i.e., 1093624900 + 45805824 = 33070^2 + 6768^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1139430724.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142428837 + ... + 142428844.

Almost surely, 2^1139430724 is an apocalyptic number.

It is an amenable number.

1139430724 is a deficient number, since it is larger than the sum of its proper divisors (854573050).

1139430724 is a wasteful number, since it uses less digits than its factorization.

1139430724 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284857685 (or 284857683 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 34.

The square root of 1139430724 is about 33755.4547295693. The cubic root of 1139430724 is about 1044.4700116958.

The spelling of 1139430724 in words is "one billion, one hundred thirty-nine million, four hundred thirty thousand, seven hundred twenty-four".