40799997 has 24 divisors (see below), whose sum is σ = 70315200. Its totient is φ = 23313528.

The previous prime is 40799989. The next prime is 40800073. The reversal of 40799997 is 79999704.

It is not a de Polignac number, because 40799997 - 2³ = 40799989 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40799947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14097 + ... + 16742.

It is an arithmetic number, because the mean of its divisors is an integer number (2929800).

Almost surely, 2^40799997 is an apocalyptic number.

It is an amenable number.

40799997 is a deficient number, since it is larger than the sum of its proper divisors (29515203).

40799997 is a wasteful number, since it uses less digits than its factorization.

40799997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30862 (or 30849 counting only the distinct ones).

The product of its (nonzero) digits is 1285956, while the sum is 54.

The square root of 40799997 is about 6387.4875342344. The cubic root of 40799997 is about 344.2601157075.

The spelling of 40799997 in words is "forty million, seven hundred ninety-nine thousand, nine hundred ninety-seven".