40866513 has 8 divisors (see below), whose sum is σ = 54545568. Its totient is φ = 27215904.

The previous prime is 40866509. The next prime is 40866517. The reversal of 40866513 is 31566804.

It is an interprime number because it is at equal distance from previous prime (40866509) and next prime (40866517).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 40866513 - 2² = 40866509 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (40866517) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3495 + ... + 9692.

It is an arithmetic number, because the mean of its divisors is an integer number (6818196).

Almost surely, 2^40866513 is an apocalyptic number.

It is an amenable number.

40866513 is a deficient number, since it is larger than the sum of its proper divisors (13679055).

40866513 is a wasteful number, since it uses less digits than its factorization.

40866513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14223.

The product of its (nonzero) digits is 17280, while the sum is 33.

The square root of 40866513 is about 6392.6921558918. The cubic root of 40866513 is about 344.4470958943.

The spelling of 40866513 in words is "forty million, eight hundred sixty-six thousand, five hundred thirteen".