40318197 has 16 divisors (see below), whose sum is σ = 56996352. Its totient is φ = 25306560.

The previous prime is 40318193. The next prime is 40318231. The reversal of 40318197 is 79181304.

It is not a de Polignac number, because 40318197 - 2² = 40318193 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40318193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2418 + ... + 9299.

It is an arithmetic number, because the mean of its divisors is an integer number (3562272).

Almost surely, 2^40318197 is an apocalyptic number.

It is an amenable number.

40318197 is a deficient number, since it is larger than the sum of its proper divisors (16678155).

40318197 is a wasteful number, since it uses less digits than its factorization.

40318197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11788.

The product of its (nonzero) digits is 6048, while the sum is 33.

The square root of 40318197 is about 6349.6611720626. The cubic root of 40318197 is about 342.8996439624.

The spelling of 40318197 in words is "forty million, three hundred eighteen thousand, one hundred ninety-seven".