168445284 has 48 divisors (see below), whose sum is σ = 468722688. Its totient is φ = 46034208.

The previous prime is 168445283. The next prime is 168445327. The reversal of 168445284 is 482544861.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (168445283) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41662 + ... + 45525.

It is an arithmetic number, because the mean of its divisors is an integer number (9765056).

Almost surely, 2^168445284 is an apocalyptic number.

168445284 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

168445284 is an abundant number, since it is smaller than the sum of its proper divisors (300277404).

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

168445284 is a wasteful number, since it uses less digits than its factorization.

168445284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87224 (or 87222 counting only the distinct ones).

The product of its digits is 245760, while the sum is 42.

The square root of 168445284 is about 12978.6472330517. The cubic root of 168445284 is about 552.2719071034.

The spelling of 168445284 in words is "one hundred sixty-eight million, four hundred forty-five thousand, two hundred eighty-four".