28474554 has 16 divisors (see below), whose sum is σ = 58786560. Its totient is φ = 9185280.

The previous prime is 28474517. The next prime is 28474583. The reversal of 28474554 is 45547482.

It is a super-4 number, since 4×28474554⁴ (a number of 31 digits) contains 4444 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76359 + ... + 76730.

It is an arithmetic number, because the mean of its divisors is an integer number (3674160).

Almost surely, 2^28474554 is an apocalyptic number.

28474554 is an abundant number, since it is smaller than the sum of its proper divisors (30312006).

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

28474554 is a wasteful number, since it uses less digits than its factorization.

28474554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 153125.

The product of its digits is 179200, while the sum is 39.

The square root of 28474554 is about 5336.1553575585. The cubic root of 28474554 is about 305.3648022311.

The spelling of 28474554 in words is "twenty-eight million, four hundred seventy-four thousand, five hundred fifty-four".