22474816 has 112 divisors (see below), whose sum is σ = 58375296. Its totient is φ = 8331264.

The previous prime is 22474813. The next prime is 22474831. The reversal of 22474816 is 61847422.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (34).

It is not an unprimeable number, because it can be changed into a prime (22474813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98895 + ... + 99121.

It is an arithmetic number, because the mean of its divisors is an integer number (521208).

Almost surely, 2^22474816 is an apocalyptic number.

22474816 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22474816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29187648).

22474816 is an abundant number, since it is smaller than the sum of its proper divisors (35900480).

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

22474816 is a wasteful number, since it uses less digits than its factorization.

22474816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276 (or 266 counting only the distinct ones).

The product of its digits is 21504, while the sum is 34.

The square root of 22474816 is about 4740.7611203266. The cubic root of 22474816 is about 282.2054402248.

The spelling of 22474816 in words is "twenty-two million, four hundred seventy-four thousand, eight hundred sixteen".