22478082 has 16 divisors (see below), whose sum is σ = 49043232. Its totient is φ = 6811520.

The previous prime is 22478077. The next prime is 22478119. The reversal of 22478082 is 28087422.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 170223 + ... + 170354.

It is an arithmetic number, because the mean of its divisors is an integer number (3065202).

Almost surely, 2^22478082 is an apocalyptic number.

22478082 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

22478082 is an abundant number, since it is smaller than the sum of its proper divisors (26565150).

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

22478082 is a wasteful number, since it uses less digits than its factorization.

22478082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340593.

The product of its (nonzero) digits is 14336, while the sum is 33.

The square root of 22478082 is about 4741.1055672701. The cubic root of 22478082 is about 282.2191094257.

The spelling of 22478082 in words is "twenty-two million, four hundred seventy-eight thousand, eighty-two".