40272591 has 8 divisors (see below), whose sum is σ = 53743104. Its totient is φ = 26825240.

The previous prime is 40272587. The next prime is 40272599. The reversal of 40272591 is 19527204.

40272591 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 40272591 - 2² = 40272587 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40272599) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1215 + ... + 9056.

It is an arithmetic number, because the mean of its divisors is an integer number (6717888).

Almost surely, 2^40272591 is an apocalyptic number.

40272591 is a deficient number, since it is larger than the sum of its proper divisors (13470513).

40272591 is a wasteful number, since it uses less digits than its factorization.

40272591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11581.

The product of its (nonzero) digits is 5040, while the sum is 30.

The square root of 40272591 is about 6346.0689406908. The cubic root of 40272591 is about 342.7703046694.

Adding to 40272591 its reverse (19527204), we get a palindrome (59799795).

The spelling of 40272591 in words is "forty million, two hundred seventy-two thousand, five hundred ninety-one".