28433372 has 24 divisors (see below), whose sum is σ = 54658800. Its totient is φ = 12834560.

The previous prime is 28433371. The next prime is 28433389. The reversal of 28433372 is 27333482.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28433371) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4388 + ... + 8724.

It is an arithmetic number, because the mean of its divisors is an integer number (2277450).

Almost surely, 2^28433372 is an apocalyptic number.

28433372 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

28433372 is a deficient number, since it is larger than the sum of its proper divisors (26225428).

28433372 is a wasteful number, since it uses less digits than its factorization.

28433372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501 (or 4499 counting only the distinct ones).

The product of its digits is 24192, while the sum is 32.

The square root of 28433372 is about 5332.2951906285. The cubic root of 28433372 is about 305.2175175043.

The spelling of 28433372 in words is "twenty-eight million, four hundred thirty-three thousand, three hundred seventy-two".