161794048 has 96 divisors (see below), whose sum is σ = 357739200. Its totient is φ = 72695808.

The previous prime is 161794043. The next prime is 161794057. The reversal of 161794048 is 840497161.

It is a self number, because there is not a number n which added to its sum of digits gives 161794048.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (161794043) 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, 1570765 + ... + 1570867.

It is an arithmetic number, because the mean of its divisors is an integer number (3726450).

Almost surely, 2^161794048 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 161794048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (178869600).

161794048 is an abundant number, since it is smaller than the sum of its proper divisors (195945152).

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

161794048 is a wasteful number, since it uses less digits than its factorization.

161794048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 197 (or 177 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 161794048 is about 12719.8289296673. The cubic root of 161794048 is about 544.9050677732.

The spelling of 161794048 in words is "one hundred sixty-one million, seven hundred ninety-four thousand, forty-eight".