28073832 has 32 divisors (see below), whose sum is σ = 70324800. Its totient is φ = 9339264.

The previous prime is 28073831. The next prime is 28073839. The reversal of 28073832 is 23837082.

It is a happy number.

It is a super-3 number, since 3×28073832³ (a number of 23 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28073793 and 28073802.

It is not an unprimeable number, because it can be changed into a prime (28073831) 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, 16644 + ... + 18252.

It is an arithmetic number, because the mean of its divisors is an integer number (2197650).

Almost surely, 2^28073832 is an apocalyptic number.

It is an amenable number.

28073832 is an abundant number, since it is smaller than the sum of its proper divisors (42250968).

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

28073832 is a wasteful number, since it uses less digits than its factorization.

28073832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345 (or 2341 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 28073832 is about 5298.4744974379. The cubic root of 28073832 is about 303.9255646474.

The spelling of 28073832 in words is "twenty-eight million, seventy-three thousand, eight hundred thirty-two".