40535550 has 144 divisors (see below), whose sum is σ = 125349120. Its totient is φ = 9288000.

The previous prime is 40535549. The next prime is 40535563. The reversal of 40535550 is 5553504.

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, 93835 + ... + 94265.

It is an arithmetic number, because the mean of its divisors is an integer number (870480).

Almost surely, 2^40535550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40535550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62674560).

40535550 is an abundant number, since it is smaller than the sum of its proper divisors (84813570).

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

40535550 is a wasteful number, since it uses less digits than its factorization.

40535550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 471 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 40535550 is about 6366.7534898094. The cubic root of 40535550 is about 343.5147238529.

The spelling of 40535550 in words is "forty million, five hundred thirty-five thousand, five hundred fifty".