40791771 has 6 divisors (see below), whose sum is σ = 58921460. Its totient is φ = 27194508.

The previous prime is 40791763. The next prime is 40791781. The reversal of 40791771 is 17719704.

It is not a de Polignac number, because 40791771 - 2³ = 40791763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40791731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2266201 + ... + 2266218.

Almost surely, 2^40791771 is an apocalyptic number.

40791771 is a deficient number, since it is larger than the sum of its proper divisors (18129689).

40791771 is a wasteful number, since it uses less digits than its factorization.

40791771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4532425 (or 4532422 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 36.

The square root of 40791771 is about 6386.8435866240. The cubic root of 40791771 is about 344.2369778459.

The spelling of 40791771 in words is "forty million, seven hundred ninety-one thousand, seven hundred seventy-one".