40652918 has 4 divisors (see below), whose sum is σ = 60979380. Its totient is φ = 20326458.

The previous prime is 40652917. The next prime is 40652921. The reversal of 40652918 is 81925604.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40652917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10163228 + ... + 10163231.

It is an arithmetic number, because the mean of its divisors is an integer number (15244845).

Almost surely, 2^40652918 is an apocalyptic number.

40652918 is a deficient number, since it is larger than the sum of its proper divisors (20326462).

40652918 is a wasteful number, since it uses less digits than its factorization.

40652918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20326461.

The product of its (nonzero) digits is 17280, while the sum is 35.

The square root of 40652918 is about 6375.9640839641. The cubic root of 40652918 is about 343.8459457576.

The spelling of 40652918 in words is "forty million, six hundred fifty-two thousand, nine hundred eighteen".