22674420 has 72 divisors (see below), whose sum is σ = 69503616. Its totient is φ = 5982912.

The previous prime is 22674401. The next prime is 22674437. The reversal of 22674420 is 2447622.

It is a happy number.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17929 + ... + 19151.

It is an arithmetic number, because the mean of its divisors is an integer number (965328).

Almost surely, 2^22674420 is an apocalyptic number.

22674420 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 22674420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34751808).

22674420 is an abundant number, since it is smaller than the sum of its proper divisors (46829196).

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

22674420 is a wasteful number, since it uses less digits than its factorization.

22674420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 5376, while the sum is 27.

The square root of 22674420 is about 4761.7664789446. The cubic root of 22674420 is about 283.0384228652.

The spelling of 22674420 in words is "twenty-two million, six hundred seventy-four thousand, four hundred twenty".