40681118 has 4 divisors (see below), whose sum is σ = 61021680. Its totient is φ = 20340558.

The previous prime is 40681073. The next prime is 40681159. The reversal of 40681118 is 81118604.

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, 10170278 + ... + 10170281.

It is an arithmetic number, because the mean of its divisors is an integer number (15255420).

Almost surely, 2^40681118 is an apocalyptic number.

40681118 is a deficient number, since it is larger than the sum of its proper divisors (20340562).

40681118 is a wasteful number, since it uses less digits than its factorization.

40681118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20340561.

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 40681118 is about 6378.1751308662. The cubic root of 40681118 is about 343.9254334052.

The spelling of 40681118 in words is "forty million, six hundred eighty-one thousand, one hundred eighteen".