40222660 has 48 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 15597824.

The previous prime is 40222643. The next prime is 40222661. The reversal of 40222660 is 6622204.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (40222661) 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, 104829 + ... + 105211.

It is an arithmetic number, because the mean of its divisors is an integer number (1814400).

Almost surely, 2^40222660 is an apocalyptic number.

It is an amenable number.

40222660 is an abundant number, since it is smaller than the sum of its proper divisors (46868540).

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

40222660 is a wasteful number, since it uses less digits than its factorization.

40222660 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540 (or 538 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 40222660 is about 6342.1337103533. The cubic root of 40222660 is about 342.6285875885.

Adding to 40222660 its reverse (6622204), we get a palindrome (46844864).

The spelling of 40222660 in words is "forty million, two hundred twenty-two thousand, six hundred sixty".