28292322 has 16 divisors (see below), whose sum is σ = 57146112. Its totient is φ = 9337200.

The previous prime is 28292321. The next prime is 28292333. The reversal of 28292322 is 22329282.

It is a self number, because there is not a number n which added to its sum of digits gives 28292322.

It is not an unprimeable number, because it can be changed into a prime (28292321) 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, 22738 + ... + 23949.

It is an arithmetic number, because the mean of its divisors is an integer number (3571632).

Almost surely, 2^28292322 is an apocalyptic number.

28292322 is an abundant number, since it is smaller than the sum of its proper divisors (28853790).

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

28292322 is a wasteful number, since it uses less digits than its factorization.

28292322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46793.

The product of its digits is 6912, while the sum is 30.

The square root of 28292322 is about 5319.0527352152. The cubic root of 28292322 is about 304.7119810809.

It can be divided in two parts, 2829 and 2322, that added together give a triangular number (5151 = T₁₀₁).

The spelling of 28292322 in words is "twenty-eight million, two hundred ninety-two thousand, three hundred twenty-two".