28574392 has 48 divisors (see below), whose sum is σ = 67319280. Its totient is φ = 11130240.

The previous prime is 28574383. The next prime is 28574393. The reversal of 28574392 is 29347582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28574393) 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, 4668 + ... + 8884.

It is an arithmetic number, because the mean of its divisors is an integer number (1402485).

Almost surely, 2^28574392 is an apocalyptic number.

28574392 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28574392, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33659640).

28574392 is an abundant number, since it is smaller than the sum of its proper divisors (38744888).

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

28574392 is a wasteful number, since it uses less digits than its factorization.

28574392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4252 (or 4237 counting only the distinct ones).

The product of its digits is 120960, while the sum is 40.

The square root of 28574392 is about 5345.5020344211. The cubic root of 28574392 is about 305.7212778057.

The spelling of 28574392 in words is "twenty-eight million, five hundred seventy-four thousand, three hundred ninety-two".