40531777 has 12 divisors (see below), whose sum is σ = 47881584. Its totient is φ = 34011120.

The previous prime is 40531753. The next prime is 40531781. The reversal of 40531777 is 77713504.

40531777 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 40531777 - 2¹¹ = 40529729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40531177) 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 11 ways as a sum of consecutive naturals, for example, 9043 + ... + 12760.

It is an arithmetic number, because the mean of its divisors is an integer number (3990132).

Almost surely, 2^40531777 is an apocalyptic number.

It is an amenable number.

40531777 is a deficient number, since it is larger than the sum of its proper divisors (7349807).

40531777 is a wasteful number, since it uses less digits than its factorization.

40531777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21840 (or 21827 counting only the distinct ones).

The product of its (nonzero) digits is 20580, while the sum is 34.

The square root of 40531777 is about 6366.4571780544. The cubic root of 40531777 is about 343.5040655438.

The spelling of 40531777 in words is "forty million, five hundred thirty-one thousand, seven hundred seventy-seven".