40533900 has 144 divisors (see below), whose sum is σ = 130491648. Its totient is φ = 9632000.

The previous prime is 40533869. The next prime is 40533901. The reversal of 40533900 is 933504.

It is not an unprimeable number, because it can be changed into a prime (40533901) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 234214 + ... + 234386.

It is an arithmetic number, because the mean of its divisors is an integer number (906192).

Almost surely, 2^40533900 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 40533900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65245824).

40533900 is an abundant number, since it is smaller than the sum of its proper divisors (89957748).

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

40533900 is a wasteful number, since it uses less digits than its factorization.

40533900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272 (or 265 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 40533900 is about 6366.6239091060. The cubic root of 40533900 is about 343.5100628661.

The spelling of 40533900 in words is "forty million, five hundred thirty-three thousand, nine hundred".