161829424 has 40 divisors (see below), whose sum is σ = 324800640. Its totient is φ = 78028800.

The previous prime is 161829397. The next prime is 161829431. The reversal of 161829424 is 424928161.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 252144 + ... + 252784.

It is an arithmetic number, because the mean of its divisors is an integer number (8120016).

Almost surely, 2^161829424 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 161829424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162400320).

161829424 is an abundant number, since it is smaller than the sum of its proper divisors (162971216).

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

161829424 is a wasteful number, since it uses less digits than its factorization.

161829424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1183 counting only the distinct ones).

The product of its digits is 27648, while the sum is 37.

The square root of 161829424 is about 12721.2194384029. The cubic root of 161829424 is about 544.9447790753.

The spelling of 161829424 in words is "one hundred sixty-one million, eight hundred twenty-nine thousand, four hundred twenty-four".