40533864 has 128 divisors (see below), whose sum is σ = 123002880. Its totient is φ = 10886400.

The previous prime is 40533863. The next prime is 40533869. The reversal of 40533864 is 46833504.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (40533863) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223854 + ... + 224034.

It is an arithmetic number, because the mean of its divisors is an integer number (960960).

Almost surely, 2^40533864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40533864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61501440).

40533864 is an abundant number, since it is smaller than the sum of its proper divisors (82469016).

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

40533864 is a wasteful number, since it uses less digits than its factorization.

40533864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 267 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 33.

The square root of 40533864 is about 6366.6210818612. The cubic root of 40533864 is about 343.5099611705.

The spelling of 40533864 in words is "forty million, five hundred thirty-three thousand, eight hundred sixty-four".