22342554 has 60 divisors (see below), whose sum is σ = 54443466. Its totient is φ = 6807888.

The previous prime is 22342547. The next prime is 22342559. The reversal of 22342554 is 45524322.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 21483225 + 859329 = 4635^2 + 927^2 .

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

It is not an unprimeable number, because it can be changed into a prime (22342559) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 216867 + ... + 216969.

Almost surely, 2^22342554 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22342554, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27221733).

22342554 is an abundant number, since it is smaller than the sum of its proper divisors (32100912).

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

22342554 is a wasteful number, since it uses less digits than its factorization.

22342554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233 (or 121 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 22342554 is about 4726.7910891005. The cubic root of 22342554 is about 281.6507673218.

Adding to 22342554 its reverse (45524322), we get a palindrome (67866876).

The spelling of 22342554 in words is "twenty-two million, three hundred forty-two thousand, five hundred fifty-four".