40912497 has 6 divisors (see below), whose sum is σ = 59095842. Its totient is φ = 27274992.

The previous prime is 40912483. The next prime is 40912519. The reversal of 40912497 is 79421904.

40912497 is a `hidden beast` number, since 409 + 1 + 249 + 7 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30569841 + 10342656 = 5529^2 + 3216^2 .

It is not a de Polignac number, because 40912497 - 2⁶ = 40912433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40912457) 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 5 ways as a sum of consecutive naturals, for example, 2272908 + ... + 2272925.

It is an arithmetic number, because the mean of its divisors is an integer number (9849307).

Almost surely, 2^40912497 is an apocalyptic number.

It is an amenable number.

40912497 is a deficient number, since it is larger than the sum of its proper divisors (18183345).

40912497 is a wasteful number, since it uses less digits than its factorization.

40912497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4545839 (or 4545836 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 40912497 is about 6396.2877515009. The cubic root of 40912497 is about 344.5762408998.

The spelling of 40912497 in words is "forty million, nine hundred twelve thousand, four hundred ninety-seven".