168750428 has 48 divisors (see below), whose sum is σ = 370427904. Its totient is φ = 65346240.

The previous prime is 168750403. The next prime is 168750431. The reversal of 168750428 is 824057861.

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 51701 + ... + 54867.

It is an arithmetic number, because the mean of its divisors is an integer number (7717248).

Almost surely, 2^168750428 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 168750428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185213952).

168750428 is an abundant number, since it is smaller than the sum of its proper divisors (201677476).

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

168750428 is a wasteful number, since it uses less digits than its factorization.

168750428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3362 (or 3360 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 41.

The square root of 168750428 is about 12990.3975304838. The cubic root of 168750428 is about 552.6051919854.

The spelling of 168750428 in words is "one hundred sixty-eight million, seven hundred fifty thousand, four hundred twenty-eight".