842991132 has 12 divisors (see below), whose sum is σ = 1966979336. Its totient is φ = 280997040.

The previous prime is 842991103. The next prime is 842991137. The reversal of 842991132 is 231199248.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (842991137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35124619 + ... + 35124642.

Almost surely, 2^842991132 is an apocalyptic number.

It is an amenable number.

842991132 is an abundant number, since it is smaller than the sum of its proper divisors (1123988204).

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

842991132 is a wasteful number, since it uses less digits than its factorization.

842991132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70249268 (or 70249266 counting only the distinct ones).

The product of its digits is 31104, while the sum is 39.

The square root of 842991132 is about 29034.3095664423. The cubic root of 842991132 is about 944.6574094795.

The spelling of 842991132 in words is "eight hundred forty-two million, nine hundred ninety-one thousand, one hundred thirty-two".