40995839 has 4 divisors (see below), whose sum is σ = 41028240. Its totient is φ = 40963440.

The previous prime is 40995827. The next prime is 40995847. The reversal of 40995839 is 93859904.

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 40995839 - 2⁸ = 40995583 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 40995793 and 40995802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40925839) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14222 + ... + 16859.

It is an arithmetic number, because the mean of its divisors is an integer number (10257060).

Almost surely, 2^40995839 is an apocalyptic number.

40995839 is a deficient number, since it is larger than the sum of its proper divisors (32401).

40995839 is a wasteful number, since it uses less digits than its factorization.

40995839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32400.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 40995839 is about 6402.7993096770. The cubic root of 40995839 is about 344.8100585770.

The spelling of 40995839 in words is "forty million, nine hundred ninety-five thousand, eight hundred thirty-nine".