40222422 has 12 divisors (see below), whose sum is σ = 87148620. Its totient is φ = 13407468.

The previous prime is 40222421. The next prime is 40222433. The reversal of 40222422 is 22422204.

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 2234579 = 40222422 / (4 + 0 + 2 + 2 + 2 + 4 + 2 + 2).

It is a junction number, because it is equal to n+sod(n) for n = 40222395 and 40222404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40222421) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1117272 + ... + 1117307.

It is an arithmetic number, because the mean of its divisors is an integer number (7262385).

Almost surely, 2^40222422 is an apocalyptic number.

40222422 is an abundant number, since it is smaller than the sum of its proper divisors (46926198).

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

40222422 is a wasteful number, since it uses less digits than its factorization.

40222422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234587 (or 2234584 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

The square root of 40222422 is about 6342.1149469243. The cubic root of 40222422 is about 342.6279118022.

Adding to 40222422 its reverse (22422204), we get a palindrome (62644626).

The spelling of 40222422 in words is "forty million, two hundred twenty-two thousand, four hundred twenty-two".