40859550 has 144 divisors (see below), whose sum is σ = 118385280. Its totient is φ = 10080000.

The previous prime is 40859531. The next prime is 40859563. The reversal of 40859550 is 5595804.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 404500 + ... + 404600.

It is an arithmetic number, because the mean of its divisors is an integer number (822120).

Almost surely, 2^40859550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40859550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59192640).

40859550 is an abundant number, since it is smaller than the sum of its proper divisors (77525730).

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

40859550 is a wasteful number, since it uses less digits than its factorization.

40859550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 171 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 40859550 is about 6392.1475264578. The cubic root of 40859550 is about 344.4275320250.

The spelling of 40859550 in words is "forty million, eight hundred fifty-nine thousand, five hundred fifty".