40505834 has 16 divisors (see below), whose sum is σ = 64236480. Its totient is φ = 19103040.

The previous prime is 40505819. The next prime is 40505863. The reversal of 40505834 is 43850504.

It is a junction number, because it is equal to n+sod(n) for n = 40505797 and 40505806.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6947 + ... + 11369.

It is an arithmetic number, because the mean of its divisors is an integer number (4014780).

Almost surely, 2^40505834 is an apocalyptic number.

40505834 is a deficient number, since it is larger than the sum of its proper divisors (23730646).

40505834 is a wasteful number, since it uses less digits than its factorization.

40505834 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4685.

The product of its (nonzero) digits is 9600, while the sum is 29.

The square root of 40505834 is about 6364.4193765025. The cubic root of 40505834 is about 343.4307615123.

The spelling of 40505834 in words is "forty million, five hundred five thousand, eight hundred thirty-four".