28273364 has 24 divisors (see below), whose sum is σ = 58372608. Its totient is φ = 11725920.

The previous prime is 28273361. The next prime is 28273373. The reversal of 28273364 is 46337282.

It is a super-2 number, since 2×28273364² = 1598766223752992, which contains 22 as substring.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28273361) 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, 15419 + ... + 17154.

It is an arithmetic number, because the mean of its divisors is an integer number (2432192).

Almost surely, 2^28273364 is an apocalyptic number.

It is an amenable number.

28273364 is an abundant number, since it is smaller than the sum of its proper divisors (30099244).

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

28273364 is a wasteful number, since it uses less digits than its factorization.

28273364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32615 (or 32613 counting only the distinct ones).

The product of its digits is 48384, while the sum is 35.

The square root of 28273364 is about 5317.2703523519. The cubic root of 28273364 is about 304.6439058330.

The spelling of 28273364 in words is "twenty-eight million, two hundred seventy-three thousand, three hundred sixty-four".