40880861 has 16 divisors (see below), whose sum is σ = 48117888. Its totient is φ = 34008000.

The previous prime is 40880857. The next prime is 40880863. The reversal of 40880861 is 16808804.

It is a cyclic number.

It is not a de Polignac number, because 40880861 - 2² = 40880857 is a prime.

It is a super-2 number, since 2×40880861² = 3342489592202642, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40880863) 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 15 ways as a sum of consecutive naturals, for example, 36926 + ... + 38016.

It is an arithmetic number, because the mean of its divisors is an integer number (3007368).

Almost surely, 2^40880861 is an apocalyptic number.

It is an amenable number.

40880861 is a deficient number, since it is larger than the sum of its proper divisors (7237027).

40880861 is a wasteful number, since it uses less digits than its factorization.

40880861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its (nonzero) digits is 12288, while the sum is 35.

The square root of 40880861 is about 6393.8142763143. The cubic root of 40880861 is about 344.4874023156.

The spelling of 40880861 in words is "forty million, eight hundred eighty thousand, eight hundred sixty-one".