40541638 has 8 divisors (see below), whose sum is σ = 61007688. Its totient is φ = 20205744.

The previous prime is 40541629. The next prime is 40541653. The reversal of 40541638 is 83614504.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31756 + ... + 33007.

It is an arithmetic number, because the mean of its divisors is an integer number (7625961).

Almost surely, 2^40541638 is an apocalyptic number.

40541638 is a deficient number, since it is larger than the sum of its proper divisors (20466050).

40541638 is a wasteful number, since it uses less digits than its factorization.

40541638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65078.

The product of its (nonzero) digits is 11520, while the sum is 31.

The square root of 40541638 is about 6367.2315805223. The cubic root of 40541638 is about 343.5319203874.

The spelling of 40541638 in words is "forty million, five hundred forty-one thousand, six hundred thirty-eight".