40836739 has 4 divisors (see below), whose sum is σ = 40851424. Its totient is φ = 40822056.

The previous prime is 40836689. The next prime is 40836767. The reversal of 40836739 is 93763804.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40836739 - 2¹³ = 40828547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40836139) 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, 1752 + ... + 9205.

It is an arithmetic number, because the mean of its divisors is an integer number (10212856).

Almost surely, 2^40836739 is an apocalyptic number.

40836739 is a deficient number, since it is larger than the sum of its proper divisors (14685).

40836739 is a wasteful number, since it uses less digits than its factorization.

40836739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14684.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 40836739 is about 6390.3629787360. The cubic root of 40836739 is about 344.3634246216.

The spelling of 40836739 in words is "forty million, eight hundred thirty-six thousand, seven hundred thirty-nine".