40421683 has 8 divisors (see below), whose sum is σ = 42678720. Its totient is φ = 38177640.

The previous prime is 40421681. The next prime is 40421729. The reversal of 40421683 is 38612404.

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

It is a cyclic number.

It is not a de Polignac number, because 40421683 - 2¹ = 40421681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40421681) 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, 3528 + ... + 9658.

It is an arithmetic number, because the mean of its divisors is an integer number (5334840).

Almost surely, 2^40421683 is an apocalyptic number.

40421683 is a deficient number, since it is larger than the sum of its proper divisors (2257037).

40421683 is a wasteful number, since it uses less digits than its factorization.

40421683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6497.

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 40421683 is about 6357.8048884816. The cubic root of 40421683 is about 343.1927704577.

The spelling of 40421683 in words is "forty million, four hundred twenty-one thousand, six hundred eighty-three".