40224242 has 8 divisors (see below), whose sum is σ = 60365100. Its totient is φ = 20102544.

The previous prime is 40224229. The next prime is 40224257. The reversal of 40224242 is 24242204.

It can be written as a sum of positive squares in 2 ways, for example, as 32501401 + 7722841 = 5701^2 + 2779^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2984 + ... + 9452.

Almost surely, 2^40224242 is an apocalyptic number.

40224242 is a deficient number, since it is larger than the sum of its proper divisors (20140858).

40224242 is a wasteful number, since it uses less digits than its factorization.

40224242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9580.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 40224242 is about 6342.2584305593. The cubic root of 40224242 is about 342.6330795118.

Adding to 40224242 its reverse (24242204), we get a palindrome (64466446).

The spelling of 40224242 in words is "forty million, two hundred twenty-four thousand, two hundred forty-two".