40543894 has 16 divisors (see below), whose sum is σ = 64504800. Its totient is φ = 19071360.

The previous prime is 40543889. The next prime is 40543901. The reversal of 40543894 is 49834504.

40543894 = 280² + 281² + ... + 523².

40543894 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 7 ways as a sum of consecutive naturals, for example, 4419 + ... + 10030.

It is an arithmetic number, because the mean of its divisors is an integer number (4031550).

Almost surely, 2^40543894 is an apocalyptic number.

40543894 is a deficient number, since it is larger than the sum of its proper divisors (23960906).

40543894 is a wasteful number, since it uses less digits than its factorization.

40543894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14535.

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 40543894 is about 6367.4087351135. The cubic root of 40543894 is about 343.5382923848.

The spelling of 40543894 in words is "forty million, five hundred forty-three thousand, eight hundred ninety-four".