40939870 has 32 divisors (see below), whose sum is σ = 79390080. Its totient is φ = 15150240.

The previous prime is 40939841. The next prime is 40939907. The reversal of 40939870 is 7893904.

40939870 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5665 + ... + 10675.

It is an arithmetic number, because the mean of its divisors is an integer number (2480940).

Almost surely, 2^40939870 is an apocalyptic number.

40939870 is a deficient number, since it is larger than the sum of its proper divisors (38450210).

40939870 is a wasteful number, since it uses less digits than its factorization.

40939870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5080.

The product of its (nonzero) digits is 54432, while the sum is 40.

The square root of 40939870 is about 6398.4271504800. The cubic root of 40939870 is about 344.6530713988.

The spelling of 40939870 in words is "forty million, nine hundred thirty-nine thousand, eight hundred seventy".