40491352 has 32 divisors (see below), whose sum is σ = 83229120. Its totient is φ = 18315040.

The previous prime is 40491349. The next prime is 40491377. The reversal of 40491352 is 25319404.

40491352 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 40491352.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18963 + ... + 20989.

It is an arithmetic number, because the mean of its divisors is an integer number (2600910).

Almost surely, 2^40491352 is an apocalyptic number.

It is an amenable number.

40491352 is an abundant number, since it is smaller than the sum of its proper divisors (42737768).

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

40491352 is a wasteful number, since it uses less digits than its factorization.

40491352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2271 (or 2267 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 40491352 is about 6363.2815433548. The cubic root of 40491352 is about 343.3898278439.

The spelling of 40491352 in words is "forty million, four hundred ninety-one thousand, three hundred fifty-two".