40242053 has 8 divisors (see below), whose sum is σ = 42202200. Its totient is φ = 38320128.

The previous prime is 40241989. The next prime is 40242079. The reversal of 40242053 is 35024204.

It can be written as a sum of positive squares in 4 ways, for example, as 13853284 + 26388769 = 3722^2 + 5137^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 40242053 - 2⁶ = 40241989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40244053) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7388 + ... + 11621.

It is an arithmetic number, because the mean of its divisors is an integer number (5275275).

Almost surely, 2^40242053 is an apocalyptic number.

It is an amenable number.

40242053 is a deficient number, since it is larger than the sum of its proper divisors (1960147).

40242053 is a wasteful number, since it uses less digits than its factorization.

40242053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19111.

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 40242053 is about 6343.6624279670. The cubic root of 40242053 is about 342.6836438561.

Adding to 40242053 its reverse (35024204), we get a palindrome (75266257).

The spelling of 40242053 in words is "forty million, two hundred forty-two thousand, fifty-three".