22827420 has 288 divisors, whose sum is σ = 90994176. Its totient is φ = 4665600.

The previous prime is 22827419. The next prime is 22827421. The reversal of 22827420 is 2472822.

It is an interprime number because it is at equal distance from previous prime (22827419) and next prime (22827421).

It is a super-2 number, since 2×22827420² = 1042182207712800, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22827421) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 374190 + ... + 374250.

It is an arithmetic number, because the mean of its divisors is an integer number (315952).

Almost surely, 2^22827420 is an apocalyptic number.

22827420 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 22827420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45497088).

22827420 is an abundant number, since it is smaller than the sum of its proper divisors (68166756).

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

22827420 is a wasteful number, since it uses less digits than its factorization.

22827420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103 (or 89 counting only the distinct ones).

The product of its (nonzero) digits is 3584, while the sum is 27.

The square root of 22827420 is about 4777.8049353233. The cubic root of 22827420 is about 283.6736149971.

The spelling of 22827420 in words is "twenty-two million, eight hundred twenty-seven thousand, four hundred twenty".