40222044 has 18 divisors (see below), whose sum is σ = 101672480. Its totient is φ = 13407336.

The previous prime is 40222033. The next prime is 40222057. The reversal of 40222044 is 44022204.

40222044 is a `hidden beast` number, since 402 + 220 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 558604 + ... + 558675.

Almost surely, 2^40222044 is an apocalyptic number.

It is an amenable number.

40222044 is an abundant number, since it is smaller than the sum of its proper divisors (61450436).

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

40222044 is a wasteful number, since it uses less digits than its factorization.

40222044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1117289 (or 1117284 counting only the distinct ones).

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

The square root of 40222044 is about 6342.0851460699. The cubic root of 40222044 is about 342.6268384891.

Adding to 40222044 its reverse (44022204), we get a palindrome (84244248).

It can be divided in two parts, 402 and 22044, that multiplied together give a palindrome (8861688).

The spelling of 40222044 in words is "forty million, two hundred twenty-two thousand, forty-four".