28374400 has 48 divisors (see below), whose sum is σ = 70101540. Its totient is φ = 11348480.

The previous prime is 28374397. The next prime is 28374403. The reversal of 28374400 is 447382.

It is an interprime number because it is at equal distance from previous prime (28374397) and next prime (28374403).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28374403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1234 + ... + 7633.

Almost surely, 2^28374400 is an apocalyptic number.

28374400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28374400 is an abundant number, since it is smaller than the sum of its proper divisors (41727140).

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

28374400 is an equidigital number, since it uses as much as digits as its factorization.

28374400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891 (or 8874 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 28.

The square root of 28374400 is about 5326.7626190774. The cubic root of 28374400 is about 305.0063601648.

The spelling of 28374400 in words is "twenty-eight million, three hundred seventy-four thousand, four hundred".