40297892 has 12 divisors (see below), whose sum is σ = 72796416. Its totient is φ = 19498920.

The previous prime is 40297891. The next prime is 40297903. The reversal of 40297892 is 29879204.

40297892 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (40297891) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 162368 + ... + 162615.

It is an arithmetic number, because the mean of its divisors is an integer number (6066368).

Almost surely, 2^40297892 is an apocalyptic number.

It is an amenable number.

40297892 is a deficient number, since it is larger than the sum of its proper divisors (32498524).

40297892 is a wasteful number, since it uses less digits than its factorization.

40297892 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325018 (or 325016 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 40297892 is about 6348.0620664893. The cubic root of 40297892 is about 342.8420707329.

The spelling of 40297892 in words is "forty million, two hundred ninety-seven thousand, eight hundred ninety-two".