40380518 has 8 divisors (see below), whose sum is σ = 61195512. Its totient is φ = 19982016.

The previous prime is 40380517. The next prime is 40380563. The reversal of 40380518 is 81508304.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40380517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103880 + ... + 104267.

It is an arithmetic number, because the mean of its divisors is an integer number (7649439).

Almost surely, 2^40380518 is an apocalyptic number.

40380518 is a deficient number, since it is larger than the sum of its proper divisors (20814994).

40380518 is a wasteful number, since it uses less digits than its factorization.

40380518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208246.

The product of its (nonzero) digits is 3840, while the sum is 29.

The square root of 40380518 is about 6354.5667043474. The cubic root of 40380518 is about 343.0762296324.

The spelling of 40380518 in words is "forty million, three hundred eighty thousand, five hundred eighteen".