28454364 has 72 divisors (see below), whose sum is σ = 74850048. Its totient is φ = 9108000.

The previous prime is 28454359. The next prime is 28454383. The reversal of 28454364 is 46345482.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 113239 + ... + 113489.

It is an arithmetic number, because the mean of its divisors is an integer number (1039584).

Almost surely, 2^28454364 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 28454364, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37425024).

28454364 is an abundant number, since it is smaller than the sum of its proper divisors (46395684).

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

28454364 is a wasteful number, since it uses less digits than its factorization.

28454364 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 375 (or 370 counting only the distinct ones).

The product of its digits is 92160, while the sum is 36.

The square root of 28454364 is about 5334.2632106037. The cubic root of 28454364 is about 305.2926117751.

The spelling of 28454364 in words is "twenty-eight million, four hundred fifty-four thousand, three hundred sixty-four".