28433570 has 16 divisors (see below), whose sum is σ = 55833408. Its totient is φ = 10339440.

The previous prime is 28433567. The next prime is 28433609. The reversal of 28433570 is 7533482.

It is a happy number.

It is an unprimeable number.

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, 129134 + ... + 129353.

It is an arithmetic number, because the mean of its divisors is an integer number (3489588).

Almost surely, 2^28433570 is an apocalyptic number.

28433570 is a deficient number, since it is larger than the sum of its proper divisors (27399838).

28433570 is a wasteful number, since it uses less digits than its factorization.

28433570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258505.

The product of its (nonzero) digits is 20160, while the sum is 32.

The square root of 28433570 is about 5332.3137567101. The cubic root of 28433570 is about 305.2182259785.

The spelling of 28433570 in words is "twenty-eight million, four hundred thirty-three thousand, five hundred seventy".