28745324 has 6 divisors (see below), whose sum is σ = 50304324. Its totient is φ = 14372660.

The previous prime is 28745267. The next prime is 28745329. The reversal of 28745324 is 42354782.

It is not an unprimeable number, because it can be changed into a prime (28745329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3593162 + ... + 3593169.

It is an arithmetic number, because the mean of its divisors is an integer number (8384054).

Almost surely, 2^28745324 is an apocalyptic number.

It is an amenable number.

28745324 is a deficient number, since it is larger than the sum of its proper divisors (21559000).

28745324 is a wasteful number, since it uses less digits than its factorization.

28745324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7186335 (or 7186333 counting only the distinct ones).

The product of its digits is 53760, while the sum is 35.

The square root of 28745324 is about 5361.4665904023. The cubic root of 28745324 is about 306.3296744525.

The spelling of 28745324 in words is "twenty-eight million, seven hundred forty-five thousand, three hundred twenty-four".