40238541 has 24 divisors (see below), whose sum is σ = 70334784. Its totient is φ = 21640320.

The previous prime is 40238537. The next prime is 40238551. The reversal of 40238541 is 14583204.

It is not a de Polignac number, because 40238541 - 2² = 40238537 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 (40238521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17715 + ... + 19856.

It is an arithmetic number, because the mean of its divisors is an integer number (2930616).

Almost surely, 2^40238541 is an apocalyptic number.

It is an amenable number.

40238541 is a deficient number, since it is larger than the sum of its proper divisors (30096243).

40238541 is a wasteful number, since it uses less digits than its factorization.

40238541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37601 (or 37598 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 40238541 is about 6343.3856102242. The cubic root of 40238541 is about 342.6736746831.

The spelling of 40238541 in words is "forty million, two hundred thirty-eight thousand, five hundred forty-one".