28342704 has 80 divisors (see below), whose sum is σ = 80432352. Its totient is φ = 8546304.

The previous prime is 28342687. The next prime is 28342709. The reversal of 28342704 is 40724382.

It is not an unprimeable number, because it can be changed into a prime (28342709) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32644 + ... + 33500.

Almost surely, 2^28342704 is an apocalyptic number.

28342704 is a gapful number since it is divisible by the number (24) 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 28342704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40216176).

28342704 is an abundant number, since it is smaller than the sum of its proper divisors (52089648).

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

28342704 is a wasteful number, since it uses less digits than its factorization.

28342704 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 934 (or 928 counting only the distinct ones).

The product of its (nonzero) digits is 10752, while the sum is 30.

The square root of 28342704 is about 5323.7866223206. The cubic root of 28342704 is about 304.8927473829.

The spelling of 28342704 in words is "twenty-eight million, three hundred forty-two thousand, seven hundred four".