22477422 has 32 divisors (see below), whose sum is σ = 49561344. Its totient is φ = 6739200.

The previous prime is 22477409. The next prime is 22477423.

22477422 is nontrivially palindromic in base 10.

It is a self number, because there is not a number n which added to its sum of digits gives 22477422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22477423) 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, 4647 + ... + 8157.

It is an arithmetic number, because the mean of its divisors is an integer number (1548792).

Almost surely, 2^22477422 is an apocalyptic number.

22477422 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 22477422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24780672).

22477422 is an abundant number, since it is smaller than the sum of its proper divisors (27083922).

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

22477422 is a wasteful number, since it uses less digits than its factorization.

22477422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3624.

The product of its digits is 12544, while the sum is 30.

The square root of 22477422 is about 4741.0359627406. The cubic root of 22477422 is about 282.2163472322.

It can be divided in two parts, 2247 and 7422, that added together give a palindrome (9669).

The spelling of 22477422 in words is "twenty-two million, four hundred seventy-seven thousand, four hundred twenty-two".