1139648832 has 224 divisors, whose sum is σ = 3885834240. Its totient is φ = 320785920.

The previous prime is 1139648821. The next prime is 1139648837. The reversal of 1139648832 is 2388469311.

1139648832 is a `hidden beast` number, since 1 + 139 + 6 + 488 + 32 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1139648837) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 858153 + ... + 859479.

Almost surely, 2^1139648832 is an apocalyptic number.

1139648832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1139648832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1942917120).

1139648832 is an abundant number, since it is smaller than the sum of its proper divisors (2746185408).

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

1139648832 is a wasteful number, since it uses less digits than its factorization.

1139648832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1426 (or 1410 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 1139648832 is about 33758.6852824573. The cubic root of 1139648832 is about 1044.5366510349.

The spelling of 1139648832 in words is "one billion, one hundred thirty-nine million, six hundred forty-eight thousand, eight hundred thirty-two".