40715818 has 48 divisors (see below), whose sum is σ = 73996416. Its totient is φ = 16648320.

The previous prime is 40715813. The next prime is 40715837. The reversal of 40715818 is 81851704.

It is not an unprimeable number, because it can be changed into a prime (40715813) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174630 + ... + 174862.

It is an arithmetic number, because the mean of its divisors is an integer number (1541592).

Almost surely, 2^40715818 is an apocalyptic number.

40715818 is a deficient number, since it is larger than the sum of its proper divisors (33280598).

40715818 is a wasteful number, since it uses less digits than its factorization.

40715818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 306 counting only the distinct ones).

The product of its (nonzero) digits is 8960, while the sum is 34.

The square root of 40715818 is about 6380.8947648429. The cubic root of 40715818 is about 344.0231922799.

It can be divided in two parts, 4071 and 5818, that added together give a palindrome (9889).

The spelling of 40715818 in words is "forty million, seven hundred fifteen thousand, eight hundred eighteen".