40220222 has 32 divisors (see below), whose sum is σ = 71622144. Its totient is φ = 16581600.

The previous prime is 40220197. The next prime is 40220231. The reversal of 40220222 is 22202204.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 40220197 and 40220206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42272 + ... + 43212.

It is an arithmetic number, because the mean of its divisors is an integer number (2238192).

Almost surely, 2^40220222 is an apocalyptic number.

40220222 is a deficient number, since it is larger than the sum of its proper divisors (31401922).

40220222 is a wasteful number, since it uses less digits than its factorization.

40220222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1064.

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 40220222 is about 6341.9415008340. The cubic root of 40220222 is about 342.6216649121.

Adding to 40220222 its reverse (22202204), we get a palindrome (62422426).

The spelling of 40220222 in words is "forty million, two hundred twenty thousand, two hundred twenty-two".