168437964 has 48 divisors (see below), whose sum is σ = 415094400. Its totient is φ = 53012736.

The previous prime is 168437957. The next prime is 168437977. The reversal of 168437964 is 469734861.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78052 + ... + 80180.

It is an arithmetic number, because the mean of its divisors is an integer number (8647800).

Almost surely, 2^168437964 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 168437964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (207547200).

168437964 is an abundant number, since it is smaller than the sum of its proper divisors (246656436).

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

168437964 is a wasteful number, since it uses less digits than its factorization.

168437964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2502 (or 2500 counting only the distinct ones).

The product of its digits is 870912, while the sum is 48.

The square root of 168437964 is about 12978.3652283329. The cubic root of 168437964 is about 552.2639070992.

The spelling of 168437964 in words is "one hundred sixty-eight million, four hundred thirty-seven thousand, nine hundred sixty-four".