28301792 has 24 divisors (see below), whose sum is σ = 58653000. Its totient is φ = 13405824.

The previous prime is 28301789. The next prime is 28301797. The reversal of 28301792 is 29710382.

It is a super-2 number, since 2×28301792² = 1601982860822528, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28301797) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22667 + ... + 23882.

It is an arithmetic number, because the mean of its divisors is an integer number (2443875).

Almost surely, 2^28301792 is an apocalyptic number.

It is an amenable number.

28301792 is an abundant number, since it is smaller than the sum of its proper divisors (30351208).

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

28301792 is a wasteful number, since it uses less digits than its factorization.

28301792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46578 (or 46570 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 28301792 is about 5319.9428568360. The cubic root of 28301792 is about 304.7459749982.

The spelling of 28301792 in words is "twenty-eight million, three hundred one thousand, seven hundred ninety-two".