40242501 has 24 divisors (see below), whose sum is σ = 64923040. Its totient is φ = 24762672.

The previous prime is 40242497. The next prime is 40242509. The reversal of 40242501 is 10524204.

It is not a de Polignac number, because 40242501 - 2² = 40242497 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40242509) 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 23 ways as a sum of consecutive naturals, for example, 3211 + ... + 9528.

Almost surely, 2^40242501 is an apocalyptic number.

It is an amenable number.

40242501 is a deficient number, since it is larger than the sum of its proper divisors (24680539).

40242501 is a wasteful number, since it uses less digits than its factorization.

40242501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12767 (or 12755 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 40242501 is about 6343.6977387010. The cubic root of 40242501 is about 342.6849155085.

Adding to 40242501 its reverse (10524204), we get a palindrome (50766705).

The spelling of 40242501 in words is "forty million, two hundred forty-two thousand, five hundred one".