28450992 has 40 divisors (see below), whose sum is σ = 73716016. Its totient is φ = 9455616.

The previous prime is 28450957. The next prime is 28450997. The reversal of 28450992 is 29905482.

It is a self number, because there is not a number n which added to its sum of digits gives 28450992.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28450997) 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, 21288 + ... + 22584.

Almost surely, 2^28450992 is an apocalyptic number.

It is an amenable number.

28450992 is an abundant number, since it is smaller than the sum of its proper divisors (45265024).

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

28450992 is a wasteful number, since it uses less digits than its factorization.

28450992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1765 (or 1759 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 28450992 is about 5333.9471313465. The cubic root of 28450992 is about 305.2805516759.

The spelling of 28450992 in words is "twenty-eight million, four hundred fifty thousand, nine hundred ninety-two".