28422492 has 48 divisors (see below), whose sum is σ = 76054272. Its totient is φ = 8092800.

The previous prime is 28422481. The next prime is 28422497. The reversal of 28422492 is 29422482.

It is a happy number.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28422497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46992 + ... + 47592.

It is an arithmetic number, because the mean of its divisors is an integer number (1584464).

Almost surely, 2^28422492 is an apocalyptic number.

It is an amenable number.

28422492 is an abundant number, since it is smaller than the sum of its proper divisors (47631780).

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

28422492 is a wasteful number, since it uses less digits than its factorization.

28422492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1178 (or 1176 counting only the distinct ones).

The product of its digits is 18432, while the sum is 33.

The square root of 28422492 is about 5331.2748944319. The cubic root of 28422492 is about 305.1785821500.

The spelling of 28422492 in words is "twenty-eight million, four hundred twenty-two thousand, four hundred ninety-two".