40318877 has 2 divisors, whose sum is σ = 40318878. Its totient is φ = 40318876.

The previous prime is 40318847. The next prime is 40318891. The reversal of 40318877 is 77881304.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38204761 + 2114116 = 6181^2 + 1454^2 .

It is a cyclic number.

It is not a de Polignac number, because 40318877 - 2⁶ = 40318813 is a prime.

It is a super-2 number, since 2×40318877² = 3251223685082258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40318877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40318807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20159438 + 20159439.

It is an arithmetic number, because the mean of its divisors is an integer number (20159439).

Almost surely, 2^40318877 is an apocalyptic number.

It is an amenable number.

40318877 is a deficient number, since it is larger than the sum of its proper divisors (1).

40318877 is an equidigital number, since it uses as much as digits as its factorization.

40318877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37632, while the sum is 38.

The square root of 40318877 is about 6349.7147180011. The cubic root of 40318877 is about 342.9015717144.

The spelling of 40318877 in words is "forty million, three hundred eighteen thousand, eight hundred seventy-seven".