40233897 has 12 divisors (see below), whose sum is σ = 63399024. Its totient is φ = 24384120.

The previous prime is 40233889. The next prime is 40233931. The reversal of 40233897 is 79833204.

It is not a de Polignac number, because 40233897 - 2³ = 40233889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40233847) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 203103 + ... + 203300.

It is an arithmetic number, because the mean of its divisors is an integer number (5283252).

Almost surely, 2^40233897 is an apocalyptic number.

It is an amenable number.

40233897 is a deficient number, since it is larger than the sum of its proper divisors (23165127).

40233897 is a wasteful number, since it uses less digits than its factorization.

40233897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406420 (or 406417 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 40233897 is about 6343.0195490791. The cubic root of 40233897 is about 342.6604913210.

The spelling of 40233897 in words is "forty million, two hundred thirty-three thousand, eight hundred ninety-seven".