28254546 has 24 divisors (see below), whose sum is σ = 61501440. Its totient is φ = 9374616.

The previous prime is 28254517. The next prime is 28254553. The reversal of 28254546 is 64545282.

It is a happy number.

It is a super-2 number, since 2×28254546² = 1596638739332232, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 28254546.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 495 + ... + 7533.

It is an arithmetic number, because the mean of its divisors is an integer number (2562560).

Almost surely, 2^28254546 is an apocalyptic number.

28254546 is an abundant number, since it is smaller than the sum of its proper divisors (33246894).

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

28254546 is a wasteful number, since it uses less digits than its factorization.

28254546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7270 (or 7267 counting only the distinct ones).

The product of its digits is 76800, while the sum is 36.

The square root of 28254546 is about 5315.5005408710. The cubic root of 28254546 is about 304.5763032024.

The spelling of 28254546 in words is "twenty-eight million, two hundred fifty-four thousand, five hundred forty-six".