40864541 has 4 divisors (see below), whose sum is σ = 42182784. Its totient is φ = 39546300.

The previous prime is 40864531. The next prime is 40864543. The reversal of 40864541 is 14546804.

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 40864541 - 2¹⁰ = 40863517 is a prime.

It is a super-2 number, since 2×40864541² = 3339821422281362, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 40864498 and 40864507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40864543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 659075 + ... + 659136.

It is an arithmetic number, because the mean of its divisors is an integer number (10545696).

Almost surely, 2^40864541 is an apocalyptic number.

It is an amenable number.

40864541 is a deficient number, since it is larger than the sum of its proper divisors (1318243).

40864541 is a wasteful number, since it uses less digits than its factorization.

40864541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318242.

The product of its (nonzero) digits is 15360, while the sum is 32.

The square root of 40864541 is about 6392.5379154136. The cubic root of 40864541 is about 344.4415554118.

The spelling of 40864541 in words is "forty million, eight hundred sixty-four thousand, five hundred forty-one".