28424746 has 16 divisors (see below), whose sum is σ = 48928320. Its totient is φ = 12132000.

The previous prime is 28424723. The next prime is 28424749. The reversal of 28424746 is 64742482.

It is not an unprimeable number, because it can be changed into a prime (28424749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 531 + ... + 7558.

It is an arithmetic number, because the mean of its divisors is an integer number (3058020).

Almost surely, 2^28424746 is an apocalyptic number.

28424746 is a deficient number, since it is larger than the sum of its proper divisors (20503574).

28424746 is a wasteful number, since it uses less digits than its factorization.

28424746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8349.

The product of its digits is 86016, while the sum is 37.

The square root of 28424746 is about 5331.4862843301. The cubic root of 28424746 is about 305.1866491689.

The spelling of 28424746 in words is "twenty-eight million, four hundred twenty-four thousand, seven hundred forty-six".