161833392 has 120 divisors (see below), whose sum is σ = 534410240. Its totient is φ = 44737920.

The previous prime is 161833351. The next prime is 161833403. The reversal of 161833392 is 293338161.

161833392 is a `hidden beast` number, since 1 + 618 + 3 + 3 + 39 + 2 = 666.

161833392 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28659 + ... + 33837.

Almost surely, 2^161833392 is an apocalyptic number.

161833392 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 161833392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267205120).

161833392 is an abundant number, since it is smaller than the sum of its proper divisors (372576848).

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

161833392 is a wasteful number, since it uses less digits than its factorization.

161833392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231 (or 5222 counting only the distinct ones).

The product of its digits is 23328, while the sum is 36.

The square root of 161833392 is about 12721.3753973381. The cubic root of 161833392 is about 544.9492329897.

The spelling of 161833392 in words is "one hundred sixty-one million, eight hundred thirty-three thousand, three hundred ninety-two".