28554460 has 24 divisors (see below), whose sum is σ = 65416176. Its totient is φ = 10383360.

The previous prime is 28554443. The next prime is 28554467. The reversal of 28554460 is 6445582.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28554467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 64677 + ... + 65116.

It is an arithmetic number, because the mean of its divisors is an integer number (2725674).

Almost surely, 2^28554460 is an apocalyptic number.

28554460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28554460 is an abundant number, since it is smaller than the sum of its proper divisors (36861716).

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

28554460 is a wasteful number, since it uses less digits than its factorization.

28554460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129813 (or 129811 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 34.

The square root of 28554460 is about 5343.6373379937. The cubic root of 28554460 is about 305.6501762179.

It can be divided in two parts, 285 and 54460, that added together give a palindrome (54745).

The spelling of 28554460 in words is "twenty-eight million, five hundred fifty-four thousand, four hundred sixty".