161842408 has 32 divisors (see below), whose sum is σ = 373484160. Its totient is φ = 64025280.

The previous prime is 161842393. The next prime is 161842423. The reversal of 161842408 is 804248161.

It is an interprime number because it is at equal distance from previous prime (161842393) and next prime (161842423).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110428 + ... + 111883.

It is an arithmetic number, because the mean of its divisors is an integer number (11671380).

Almost surely, 2^161842408 is an apocalyptic number.

It is an amenable number.

161842408 is an abundant number, since it is smaller than the sum of its proper divisors (211641752).

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

161842408 is a wasteful number, since it uses less digits than its factorization.

161842408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222337 (or 222333 counting only the distinct ones).

The product of its (nonzero) digits is 12288, while the sum is 34.

The square root of 161842408 is about 12721.7297566015. The cubic root of 161842408 is about 544.9593528028.

The spelling of 161842408 in words is "one hundred sixty-one million, eight hundred forty-two thousand, four hundred eight".