40113897 has 8 divisors (see below), whose sum is σ = 56631456. Its totient is φ = 25169472.

The previous prime is 40113893. The next prime is 40113911. The reversal of 40113897 is 79831104.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40113897 - 2² = 40113893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40113893) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 393223 + ... + 393324.

It is an arithmetic number, because the mean of its divisors is an integer number (7078932).

Almost surely, 2^40113897 is an apocalyptic number.

It is an amenable number.

40113897 is a deficient number, since it is larger than the sum of its proper divisors (16517559).

40113897 is a wasteful number, since it uses less digits than its factorization.

40113897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 786567.

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

The square root of 40113897 is about 6333.5532681110. The cubic root of 40113897 is about 342.3194836126.

The spelling of 40113897 in words is "forty million, one hundred thirteen thousand, eight hundred ninety-seven".