40559040 has 84 divisors (see below), whose sum is σ = 139516104. Its totient is φ = 10814976.

The previous prime is 40559039. The next prime is 40559087. The reversal of 40559040 is 4095504.

It is a junction number, because it is equal to n+sod(n) for n = 40558995 and 40559013.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4162 + ... + 9921.

It is an arithmetic number, because the mean of its divisors is an integer number (1660906).

Almost surely, 2^40559040 is an apocalyptic number.

40559040 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40559040 is an abundant number, since it is smaller than the sum of its proper divisors (98957064).

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

40559040 is a wasteful number, since it uses less digits than its factorization.

40559040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14106 (or 14093 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 40559040 is about 6368.5979618751. The cubic root of 40559040 is about 343.5810656417.

The spelling of 40559040 in words is "forty million, five hundred fifty-nine thousand, forty".