161592444 has 72 divisors (see below), whose sum is σ = 441415520. Its totient is φ = 49548672.

The previous prime is 161592443. The next prime is 161592467. The reversal of 161592444 is 444295161.

161592444 is a `hidden beast` number, since 1 + 61 + 592 + 4 + 4 + 4 = 666.

161592444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×161592444² = 52224235915786272, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 161592399 and 161592408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161592443) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227562 + ... + 228270.

Almost surely, 2^161592444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 161592444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (220707760).

161592444 is an abundant number, since it is smaller than the sum of its proper divisors (279823076).

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

161592444 is a wasteful number, since it uses less digits than its factorization.

161592444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1219 (or 1214 counting only the distinct ones).

The product of its digits is 34560, while the sum is 36.

The square root of 161592444 is about 12711.9016673352. The cubic root of 161592444 is about 544.6786467920.

The spelling of 161592444 in words is "one hundred sixty-one million, five hundred ninety-two thousand, four hundred forty-four".