28454200 has 24 divisors (see below), whose sum is σ = 66156480. Its totient is φ = 11381600.

The previous prime is 28454177. The next prime is 28454201. The reversal of 28454200 is 245482.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 70936 + ... + 71335.

It is an arithmetic number, because the mean of its divisors is an integer number (2756520).

Almost surely, 2^28454200 is an apocalyptic number.

28454200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28454200 is an abundant number, since it is smaller than the sum of its proper divisors (37702280).

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

28454200 is a wasteful number, since it uses less digits than its factorization.

28454200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142287 (or 142278 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 28454200 is about 5334.2478382617. The cubic root of 28454200 is about 305.2920252443.

Adding to 28454200 its reverse (245482), we get a palindrome (28699682).

The spelling of 28454200 in words is "twenty-eight million, four hundred fifty-four thousand, two hundred".