40861069 has 4 divisors (see below), whose sum is σ = 42179200. Its totient is φ = 39542940.

The previous prime is 40861063. The next prime is 40861097. The reversal of 40861069 is 96016804.

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 40861069 - 2⁹ = 40860557 is a prime.

It is a super-2 number, since 2×40861069² = 3339253919645522, 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 (40861063) 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, 659019 + ... + 659080.

It is an arithmetic number, because the mean of its divisors is an integer number (10544800).

Almost surely, 2^40861069 is an apocalyptic number.

It is an amenable number.

40861069 is a deficient number, since it is larger than the sum of its proper divisors (1318131).

40861069 is a wasteful number, since it uses less digits than its factorization.

40861069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318130.

The product of its (nonzero) digits is 10368, while the sum is 34.

The square root of 40861069 is about 6392.2663430117. The cubic root of 40861069 is about 344.4318001332.

The spelling of 40861069 in words is "forty million, eight hundred sixty-one thousand, sixty-nine".