22040262 has 80 divisors (see below), whose sum is σ = 53631072. Its totient is φ = 6739200.

The previous prime is 22040231. The next prime is 22040267. The reversal of 22040262 is 26204022.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22040267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 145887 + ... + 146037.

Almost surely, 2^22040262 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22040262, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26815536).

22040262 is an abundant number, since it is smaller than the sum of its proper divisors (31590810).

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

22040262 is a wasteful number, since it uses less digits than its factorization.

22040262 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 226 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 22040262 is about 4694.7057415774. The cubic root of 22040262 is about 280.3747617874.

Adding to 22040262 its reverse (26204022), we get a palindrome (48244284).

The spelling of 22040262 in words is "twenty-two million, forty thousand, two hundred sixty-two".