40505332 has 12 divisors (see below), whose sum is σ = 81010720. Its totient is φ = 17359416.

The previous prime is 40505317. The next prime is 40505341. The reversal of 40505332 is 23350504.

40505332 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 723282 + ... + 723337.

Almost surely, 2^40505332 is an apocalyptic number.

It is an amenable number.

40505332 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

40505332 is a wasteful number, since it uses less digits than its factorization.

40505332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1446630 (or 1446628 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 22.

The square root of 40505332 is about 6364.3799383758. The cubic root of 40505332 is about 343.4293427623.

Adding to 40505332 its reverse (23350504), we get a palindrome (63855836).

The spelling of 40505332 in words is "forty million, five hundred five thousand, three hundred thirty-two".