22478248 has 48 divisors (see below), whose sum is σ = 47190780. Its totient is φ = 9977856.

The previous prime is 22478243. The next prime is 22478249. The reversal of 22478248 is 84287422.

It can be written as a sum of positive squares in 6 ways, for example, as 14760964 + 7717284 = 3842^2 + 2778^2 .

It is not an unprimeable number, because it can be changed into a prime (22478243) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87336 + ... + 87592.

Almost surely, 2^22478248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22478248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23595390).

22478248 is an abundant number, since it is smaller than the sum of its proper divisors (24712532).

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

22478248 is a wasteful number, since it uses less digits than its factorization.

22478248 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 301 counting only the distinct ones).

The product of its digits is 57344, while the sum is 37.

The square root of 22478248 is about 4741.1230737031. The cubic root of 22478248 is about 282.2198041507.

The spelling of 22478248 in words is "twenty-two million, four hundred seventy-eight thousand, two hundred forty-eight".