40413442 has 4 divisors (see below), whose sum is σ = 60620166. Its totient is φ = 20206720.

The previous prime is 40413397. The next prime is 40413481. The reversal of 40413442 is 24431404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 39803481 + 609961 = 6309^2 + 781^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10103359 + ... + 10103362.

Almost surely, 2^40413442 is an apocalyptic number.

40413442 is a deficient number, since it is larger than the sum of its proper divisors (20206724).

40413442 is a wasteful number, since it uses less digits than its factorization.

40413442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20206723.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 40413442 is about 6357.1567543989. The cubic root of 40413442 is about 343.1694459807.

Adding to 40413442 its reverse (24431404), we get a palindrome (64844846).

The spelling of 40413442 in words is "forty million, four hundred thirteen thousand, four hundred forty-two".