28434168 has 48 divisors (see below), whose sum is σ = 88012080. Its totient is φ = 8123904.

The previous prime is 28434143. The next prime is 28434169. The reversal of 28434168 is 86143482.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28434169) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27705 + ... + 28712.

It is an arithmetic number, because the mean of its divisors is an integer number (1833585).

Almost surely, 2^28434168 is an apocalyptic number.

28434168 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28434168 is an abundant number, since it is smaller than the sum of its proper divisors (59577912).

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

28434168 is a wasteful number, since it uses less digits than its factorization.

28434168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56436 (or 56429 counting only the distinct ones).

The product of its digits is 36864, while the sum is 36.

The square root of 28434168 is about 5332.3698296349. The cubic root of 28434168 is about 305.2203656936.

The spelling of 28434168 in words is "twenty-eight million, four hundred thirty-four thousand, one hundred sixty-eight".