28374600 has 144 divisors (see below), whose sum is σ = 93543120. Its totient is φ = 7113600.

The previous prime is 28374569. The next prime is 28374601. The reversal of 28374600 is 647382.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (28374601) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 216535 + ... + 216665.

It is an arithmetic number, because the mean of its divisors is an integer number (649605).

Almost surely, 2^28374600 is an apocalyptic number.

28374600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28374600, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46771560).

28374600 is an abundant number, since it is smaller than the sum of its proper divisors (65168520).

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

28374600 is a wasteful number, since it uses less digits than its factorization.

28374600 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 30.

The square root of 28374600 is about 5326.7813921730. The cubic root of 28374600 is about 305.0070767864.

The spelling of 28374600 in words is "twenty-eight million, three hundred seventy-four thousand, six hundred".