40877866 has 4 divisors (see below), whose sum is σ = 61316802. Its totient is φ = 20438932.

The previous prime is 40877833. The next prime is 40877867. The reversal of 40877866 is 66877804.

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

It can be written as a sum of positive squares in only one way, i.e., 39425841 + 1452025 = 6279^2 + 1205^2 .

It is not an unprimeable number, because it can be changed into a prime (40877867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10219465 + ... + 10219468.

Almost surely, 2^40877866 is an apocalyptic number.

40877866 is a deficient number, since it is larger than the sum of its proper divisors (20438936).

40877866 is a wasteful number, since it uses less digits than its factorization.

40877866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20438935.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 40877866 is about 6393.5800612802. The cubic root of 40877866 is about 344.4789895364.

The spelling of 40877866 in words is "forty million, eight hundred seventy-seven thousand, eight hundred sixty-six".