40041242 has 8 divisors (see below), whose sum is σ = 60201876. Its totient is φ = 19973952.

The previous prime is 40041241. The next prime is 40041247. The reversal of 40041242 is 24214004.

It can be written as a sum of positive squares in 2 ways, for example, as 39828721 + 212521 = 6311^2 + 461^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 40041242.

It is not an unprimeable number, because it can be changed into a prime (40041241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22253 + ... + 23984.

Almost surely, 2^40041242 is an apocalyptic number.

40041242 is a deficient number, since it is larger than the sum of its proper divisors (20160634).

40041242 is a wasteful number, since it uses less digits than its factorization.

40041242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46672.

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 40041242 is about 6327.8149467253. The cubic root of 40041242 is about 342.1126870092.

Adding to 40041242 its reverse (24214004), we get a palindrome (64255246).

The spelling of 40041242 in words is "forty million, forty-one thousand, two hundred forty-two".