40938621 has 8 divisors (see below), whose sum is σ = 54703584. Its totient is φ = 27233040.

The previous prime is 40938607. The next prime is 40938647. The reversal of 40938621 is 12683904.

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

It is not a de Polignac number, because 40938621 - 2⁵ = 40938589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40938421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13210 + ... + 16011.

It is an arithmetic number, because the mean of its divisors is an integer number (6837948).

Almost surely, 2^40938621 is an apocalyptic number.

It is an amenable number.

40938621 is a deficient number, since it is larger than the sum of its proper divisors (13764963).

40938621 is a wasteful number, since it uses less digits than its factorization.

40938621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29691.

The product of its (nonzero) digits is 10368, while the sum is 33.

The square root of 40938621 is about 6398.3295476241. The cubic root of 40938621 is about 344.6495664531.

The spelling of 40938621 in words is "forty million, nine hundred thirty-eight thousand, six hundred twenty-one".