40272899 has 4 divisors (see below), whose sum is σ = 40520136. Its totient is φ = 40025664.

The previous prime is 40272889. The next prime is 40272901. The reversal of 40272899 is 99827204.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 40272899 - 2²⁰ = 39224323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40272809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123374 + ... + 123699.

It is an arithmetic number, because the mean of its divisors is an integer number (10130034).

Almost surely, 2^40272899 is an apocalyptic number.

40272899 is a deficient number, since it is larger than the sum of its proper divisors (247237).

40272899 is a wasteful number, since it uses less digits than its factorization.

40272899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247236.

The product of its (nonzero) digits is 72576, while the sum is 41.

The square root of 40272899 is about 6346.0932076357. The cubic root of 40272899 is about 342.7711784893.

The spelling of 40272899 in words is "forty million, two hundred seventy-two thousand, eight hundred ninety-nine".