28454692 has 18 divisors (see below), whose sum is σ = 57926022. Its totient is φ = 12194784.

The previous prime is 28454687. The next prime is 28454707. The reversal of 28454692 is 29645482.

It can be written as a sum of positive squares in only one way, i.e., 28451556 + 3136 = 5334^2 + 56^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 72393 + ... + 72784.

Almost surely, 2^28454692 is an apocalyptic number.

It is an amenable number.

28454692 is an abundant number, since it is smaller than the sum of its proper divisors (29471330).

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

28454692 is a wasteful number, since it uses less digits than its factorization.

28454692 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145195 (or 145186 counting only the distinct ones).

The product of its digits is 138240, while the sum is 40.

The square root of 28454692 is about 5334.2939551547. The cubic root of 28454692 is about 305.2937848300.

The spelling of 28454692 in words is "twenty-eight million, four hundred fifty-four thousand, six hundred ninety-two".