40594618 has 4 divisors (see below), whose sum is σ = 60891930. Its totient is φ = 20297308.

The previous prime is 40594613. The next prime is 40594649. The reversal of 40594618 is 81649504.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 35916049 + 4678569 = 5993^2 + 2163^2 .

It is not an unprimeable number, because it can be changed into a prime (40594613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10148653 + ... + 10148656.

Almost surely, 2^40594618 is an apocalyptic number.

40594618 is a deficient number, since it is larger than the sum of its proper divisors (20297312).

40594618 is a wasteful number, since it uses less digits than its factorization.

40594618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20297311.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 40594618 is about 6371.3905860495. The cubic root of 40594618 is about 343.6814982839.

The spelling of 40594618 in words is "forty million, five hundred ninety-four thousand, six hundred eighteen".