40521104 has 20 divisors (see below), whose sum is σ = 84549276. Its totient is φ = 18701952.

The previous prime is 40521037. The next prime is 40521109. The reversal of 40521104 is 40112504.

It can be written as a sum of positive squares in 2 ways, for example, as 22543504 + 17977600 = 4748^2 + 4240^2 .

It is not an unprimeable number, because it can be changed into a prime (40521109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97199 + ... + 97614.

Almost surely, 2^40521104 is an apocalyptic number.

It is an amenable number.

40521104 is an abundant number, since it is smaller than the sum of its proper divisors (44028172).

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

40521104 is a wasteful number, since it uses less digits than its factorization.

40521104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194834 (or 194828 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 17.

The square root of 40521104 is about 6365.6189015680. The cubic root of 40521104 is about 343.4739119128.

Adding to 40521104 its reverse (40112504), we get a palindrome (80633608).

The spelling of 40521104 in words is "forty million, five hundred twenty-one thousand, one hundred four".