40407771 has 4 divisors (see below), whose sum is σ = 53877032. Its totient is φ = 26938512.

The previous prime is 40407761. The next prime is 40407779. The reversal of 40407771 is 17770404.

40407771 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 40407771 - 2⁹ = 40407259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40407779) 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 3 ways as a sum of consecutive naturals, for example, 6734626 + ... + 6734631.

It is an arithmetic number, because the mean of its divisors is an integer number (13469258).

Almost surely, 2^40407771 is an apocalyptic number.

40407771 is a deficient number, since it is larger than the sum of its proper divisors (13469261).

40407771 is a wasteful number, since it uses less digits than its factorization.

40407771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13469260.

The product of its (nonzero) digits is 5488, while the sum is 30.

The square root of 40407771 is about 6356.7107060177. The cubic root of 40407771 is about 343.1533935250.

It can be divided in two parts, 4040 and 7771, that added together give a palindrome (11811).

The spelling of 40407771 in words is "forty million, four hundred seven thousand, seven hundred seventy-one".