40521936 has 80 divisors (see below), whose sum is σ = 128852864. Its totient is φ = 10685952.

The previous prime is 40521911. The next prime is 40521937. The reversal of 40521936 is 63912504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40521937) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271 + ... + 9006.

Almost surely, 2^40521936 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 40521936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64426432).

40521936 is an abundant number, since it is smaller than the sum of its proper divisors (88330928).

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

40521936 is a wasteful number, since it uses less digits than its factorization.

40521936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9308 (or 9302 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 30.

The square root of 40521936 is about 6365.6842523016. The cubic root of 40521936 is about 343.4762626906.

The spelling of 40521936 in words is "forty million, five hundred twenty-one thousand, nine hundred thirty-six".