161434800 has 90 divisors (see below), whose sum is σ = 560236092. Its totient is φ = 43048320.

The previous prime is 161434799. The next prime is 161434831. The reversal of 161434800 is 8434161.

161434800 is a `hidden beast` number, since 1 + 614 + 3 + 48 + 0 + 0 = 666.

161434800 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (90).

It is a super-2 number, since 2×161434800² = 52122389302080000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 18822 + ... + 26021.

Almost surely, 2^161434800 is an apocalyptic number.

161434800 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161434800 is an abundant number, since it is smaller than the sum of its proper divisors (398801292).

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

161434800 is a wasteful number, since it uses less digits than its factorization.

161434800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44867 (or 44853 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The square root of 161434800 is about 12705.6995084883. The cubic root of 161434800 is about 544.5014659453.

Adding to 161434800 its reverse (8434161), we get a palindrome (169868961).

The spelling of 161434800 in words is "one hundred sixty-one million, four hundred thirty-four thousand, eight hundred".