40839061 has 4 divisors (see below), whose sum is σ = 40924800. Its totient is φ = 40753324.

The previous prime is 40839041. The next prime is 40839079. The reversal of 40839061 is 16093804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40839061 - 2⁹ = 40838549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40839031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42151 + ... + 43108.

It is an arithmetic number, because the mean of its divisors is an integer number (10231200).

Almost surely, 2^40839061 is an apocalyptic number.

It is an amenable number.

40839061 is a deficient number, since it is larger than the sum of its proper divisors (85739).

40839061 is an equidigital number, since it uses as much as digits as its factorization.

40839061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85738.

The product of its (nonzero) digits is 5184, while the sum is 31.

The square root of 40839061 is about 6390.5446559742. The cubic root of 40839061 is about 344.3699513974.

The spelling of 40839061 in words is "forty million, eight hundred thirty-nine thousand, sixty-one".