40168877 has 6 divisors (see below), whose sum is σ = 46727118. Its totient is φ = 34430424.

The previous prime is 40168871. The next prime is 40168883. The reversal of 40168877 is 77886104.

It is an interprime number because it is at equal distance from previous prime (40168871) and next prime (40168883).

It can be written as a sum of positive squares in only one way, i.e., 36409156 + 3759721 = 6034^2 + 1939^2 .

It is not a de Polignac number, because 40168877 - 2⁴ = 40168861 is a prime.

It is a super-2 number, since 2×40168877² = 3227077358882258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40168871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 409838 + ... + 409935.

It is an arithmetic number, because the mean of its divisors is an integer number (7787853).

Almost surely, 2^40168877 is an apocalyptic number.

It is an amenable number.

40168877 is a deficient number, since it is larger than the sum of its proper divisors (6558241).

40168877 is an equidigital number, since it uses as much as digits as its factorization.

40168877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 819787 (or 819780 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 41.

The square root of 40168877 is about 6337.8921574921. The cubic root of 40168877 is about 342.4758062723.

The spelling of 40168877 in words is "forty million, one hundred sixty-eight thousand, eight hundred seventy-seven".