40707838 has 16 divisors (see below), whose sum is σ = 64051200. Its totient is φ = 19366776.

The previous prime is 40707833. The next prime is 40707839. The reversal of 40707838 is 83870704.

It is a junction number, because it is equal to n+sod(n) for n = 40707797 and 40707806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40707833) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6931 + ... + 11377.

It is an arithmetic number, because the mean of its divisors is an integer number (4003200).

Almost surely, 2^40707838 is an apocalyptic number.

40707838 is a deficient number, since it is larger than the sum of its proper divisors (23343362).

40707838 is a wasteful number, since it uses less digits than its factorization.

40707838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4671.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 40707838 is about 6380.2694300476. The cubic root of 40707838 is about 344.0007154753. Note that the first 3 decimals are identical.

The spelling of 40707838 in words is "forty million, seven hundred seven thousand, eight hundred thirty-eight".