161792832 has 56 divisors (see below), whose sum is σ = 438054496. Its totient is φ = 52674048.

The previous prime is 161792821. The next prime is 161792837. The reversal of 161792832 is 238297161.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161792837) 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, 1543 + ... + 18054.

Almost surely, 2^161792832 is an apocalyptic number.

161792832 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 161792832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (219027248).

161792832 is an abundant number, since it is smaller than the sum of its proper divisors (276261664).

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

161792832 is a wasteful number, since it uses less digits than its factorization.

161792832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19655 (or 19645 counting only the distinct ones).

The product of its digits is 36288, while the sum is 39.

The square root of 161792832 is about 12719.7811301925. The cubic root of 161792832 is about 544.9037026504.

It can be divided in two parts, 1617 and 92832, that added together give a palindrome (94449).

The spelling of 161792832 in words is "one hundred sixty-one million, seven hundred ninety-two thousand, eight hundred thirty-two".