22483440 has 160 divisors (see below), whose sum is σ = 88565760. Its totient is φ = 5135616.

The previous prime is 22483429. The next prime is 22483451. The reversal of 22483440 is 4438422.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22483429) and next prime (22483451).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a nialpdrome in base 12.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14377 + ... + 15863.

It is an arithmetic number, because the mean of its divisors is an integer number (553536).

Almost surely, 2^22483440 is an apocalyptic number.

22483440 is a gapful number since it is divisible by the number (20) 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 22483440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44282880).

22483440 is an abundant number, since it is smaller than the sum of its proper divisors (66082320).

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

22483440 is a wasteful number, since it uses less digits than its factorization.

22483440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1516 (or 1504 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 27.

The square root of 22483440 is about 4741.6705916797. The cubic root of 22483440 is about 282.2415314138.

The spelling of 22483440 in words is "twenty-two million, four hundred eighty-three thousand, four hundred forty".