40881977 has 4 divisors (see below), whose sum is σ = 43033680. Its totient is φ = 38730276.

The previous prime is 40881959. The next prime is 40881983. The reversal of 40881977 is 77918804.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 40881977 - 2⁶ = 40881913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40881937) 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 in 3 ways as a sum of consecutive naturals, for example, 1075823 + ... + 1075860.

It is an arithmetic number, because the mean of its divisors is an integer number (10758420).

Almost surely, 2^40881977 is an apocalyptic number.

It is an amenable number.

40881977 is a deficient number, since it is larger than the sum of its proper divisors (2151703).

40881977 is a wasteful number, since it uses less digits than its factorization.

40881977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2151702.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 40881977 is about 6393.9015475686. The cubic root of 40881977 is about 344.4905369890.

The spelling of 40881977 in words is "forty million, eight hundred eighty-one thousand, nine hundred seventy-seven".