40354771 has 2 divisors, whose sum is σ = 40354772. Its totient is φ = 40354770.

The previous prime is 40354763. The next prime is 40354789. The reversal of 40354771 is 17745304.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40354771 - 2³ = 40354763 is a prime.

It is not a weakly prime, because it can be changed into another prime (40351771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20177385 + 20177386.

It is an arithmetic number, because the mean of its divisors is an integer number (20177386).

Almost surely, 2^40354771 is an apocalyptic number.

40354771 is a deficient number, since it is larger than the sum of its proper divisors (1).

40354771 is an equidigital number, since it uses as much as digits as its factorization.

40354771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 40354771 is about 6352.5405154159. The cubic root of 40354771 is about 343.0032979139.

The spelling of 40354771 in words is "forty million, three hundred fifty-four thousand, seven hundred seventy-one".