40839834 has 48 divisors (see below), whose sum is σ = 98102016. Its totient is φ = 11289600.

The previous prime is 40839779. The next prime is 40839853. The reversal of 40839834 is 43893804.

It is a super-2 number, since 2×40839834² = 3335784082295112, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40839792 and 40839801.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6874 + ... + 11354.

It is an arithmetic number, because the mean of its divisors is an integer number (2043792).

Almost surely, 2^40839834 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40839834, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (49051008).

40839834 is an abundant number, since it is smaller than the sum of its proper divisors (57262182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40839834 is a wasteful number, since it uses less digits than its factorization.

40839834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4531 (or 4524 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 39.

The square root of 40839834 is about 6390.6051356659. The cubic root of 40839834 is about 344.3721241236.

The spelling of 40839834 in words is "forty million, eight hundred thirty-nine thousand, eight hundred thirty-four".