40220224 has 28 divisors (see below), whose sum is σ = 87069168. Its totient is φ = 18281600.

The previous prime is 40220197. The next prime is 40220231. The reversal of 40220224 is 42202204.

It is a super-2 number, since 2×40220224² = 3235332837220352, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a junction number, because it is equal to n+sod(n) for n = 40220198 and 40220207.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27862 + ... + 29269.

Almost surely, 2^40220224 is an apocalyptic number.

40220224 is a gapful number since it is divisible by the number (44) formed by its first and last digit.

It is an amenable number.

40220224 is an abundant number, since it is smaller than the sum of its proper divisors (46848944).

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

40220224 is a wasteful number, since it uses less digits than its factorization.

40220224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57154 (or 57144 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 16.

The square root of 40220224 is about 6341.9416585144. The cubic root of 40220224 is about 342.6216705912.

Adding to 40220224 its reverse (42202204), we get a palindrome (82422428).

The spelling of 40220224 in words is "forty million, two hundred twenty thousand, two hundred twenty-four".