40242131 has 8 divisors (see below), whose sum is σ = 40640400. Its totient is φ = 39846240.

The previous prime is 40242119. The next prime is 40242173. The reversal of 40242131 is 13124204.

40242131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40242131 is a prime.

It is a super-2 number, since 2×40242131² = 3238858214842322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40242731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56405 + ... + 57113.

It is an arithmetic number, because the mean of its divisors is an integer number (5080050).

Almost surely, 2^40242131 is an apocalyptic number.

40242131 is a deficient number, since it is larger than the sum of its proper divisors (398269).

40242131 is a wasteful number, since it uses less digits than its factorization.

40242131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 40242131 is about 6343.6685758321. The cubic root of 40242131 is about 342.6838652606.

Adding to 40242131 its reverse (13124204), we get a palindrome (53366335).

The spelling of 40242131 in words is "forty million, two hundred forty-two thousand, one hundred thirty-one".