40264791 has 16 divisors (see below), whose sum is σ = 61480704. Its totient is φ = 22961664.

The previous prime is 40264733. The next prime is 40264801. The reversal of 40264791 is 19746204.

It is a happy number.

40264791 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 40264791 - 2¹⁴ = 40248407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40263791) 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 15 ways as a sum of consecutive naturals, for example, 10456 + ... + 13778.

It is an arithmetic number, because the mean of its divisors is an integer number (3842544).

Almost surely, 2^40264791 is an apocalyptic number.

40264791 is a deficient number, since it is larger than the sum of its proper divisors (21215913).

40264791 is a wasteful number, since it uses less digits than its factorization.

40264791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3910.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 40264791 is about 6345.4543572545. The cubic root of 40264791 is about 342.7481739767.

The spelling of 40264791 in words is "forty million, two hundred sixty-four thousand, seven hundred ninety-one".