40041894 has 16 divisors (see below), whose sum is σ = 82667520. Its totient is φ = 12916680.

The previous prime is 40041893. The next prime is 40041907. The reversal of 40041894 is 49814004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40041893) 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, 107454 + ... + 107825.

It is an arithmetic number, because the mean of its divisors is an integer number (5166720).

Almost surely, 2^40041894 is an apocalyptic number.

40041894 is an abundant number, since it is smaller than the sum of its proper divisors (42625626).

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

40041894 is a wasteful number, since it uses less digits than its factorization.

40041894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215315.

The product of its (nonzero) digits is 4608, while the sum is 30.

The square root of 40041894 is about 6327.8664650892. The cubic root of 40041894 is about 342.1145438969.

Adding to 40041894 its reverse (49814004), we get a palindrome (89855898).

The spelling of 40041894 in words is "forty million, forty-one thousand, eight hundred ninety-four".