40057877 has 4 divisors (see below), whose sum is σ = 40813740. Its totient is φ = 39302016.

The previous prime is 40057867. The next prime is 40057889. The reversal of 40057877 is 77875004.

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

It can be written as a sum of positive squares in 2 ways, for example, as 27730756 + 12327121 = 5266^2 + 3511^2 .

It is a cyclic number.

It is not a de Polignac number, because 40057877 - 2⁸ = 40057621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40057877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40057837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 377852 + ... + 377957.

It is an arithmetic number, because the mean of its divisors is an integer number (10203435).

Almost surely, 2^40057877 is an apocalyptic number.

It is an amenable number.

40057877 is a deficient number, since it is larger than the sum of its proper divisors (755863).

40057877 is an equidigital number, since it uses as much as digits as its factorization.

40057877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 755862.

The product of its (nonzero) digits is 54880, while the sum is 38.

The square root of 40057877 is about 6329.1292450068. The cubic root of 40057877 is about 342.1600569736.

The spelling of 40057877 in words is "forty million, fifty-seven thousand, eight hundred seventy-seven".