40548566 has 4 divisors (see below), whose sum is σ = 60822852. Its totient is φ = 20274282.

The previous prime is 40548533. The next prime is 40548611. The reversal of 40548566 is 66584504.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10137140 + ... + 10137143.

It is an arithmetic number, because the mean of its divisors is an integer number (15205713).

Almost surely, 2^40548566 is an apocalyptic number.

40548566 is a deficient number, since it is larger than the sum of its proper divisors (20274286).

40548566 is a wasteful number, since it uses less digits than its factorization.

40548566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20274285.

The product of its (nonzero) digits is 115200, while the sum is 38.

The square root of 40548566 is about 6367.7755927796. The cubic root of 40548566 is about 343.5514875427.

It can be divided in two parts, 40548 and 566, that added together give a palindrome (41114).

The spelling of 40548566 in words is "forty million, five hundred forty-eight thousand, five hundred sixty-six".