28373072 has 60 divisors (see below), whose sum is σ = 68076000. Its totient is φ = 11217024.

The previous prime is 28373071. The next prime is 28373089. The reversal of 28373072 is 27037382.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28373071) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 18179 + ... + 19677.

It is an arithmetic number, because the mean of its divisors is an integer number (1134600).

Almost surely, 2^28373072 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28373072, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34038000).

28373072 is an abundant number, since it is smaller than the sum of its proper divisors (39702928).

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

28373072 is a wasteful number, since it uses less digits than its factorization.

28373072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1540 (or 1521 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 28373072 is about 5326.6379640445. The cubic root of 28373072 is about 305.0016017116.

The spelling of 28373072 in words is "twenty-eight million, three hundred seventy-three thousand, seventy-two".