40380503918 has 8 divisors (see below), whose sum is σ = 60624985512. Its totient is φ = 20172175416.

The previous prime is 40380503873. The next prime is 40380503929. The reversal of 40380503918 is 81930508304.

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

It is a super-2 number, since 2×40380503918² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9035480 + ... + 9039947.

It is an arithmetic number, because the mean of its divisors is an integer number (7578123189).

Almost surely, 2^40380503918 is an apocalyptic number.

40380503918 is a deficient number, since it is larger than the sum of its proper divisors (20244481594).

40380503918 is a wasteful number, since it uses less digits than its factorization.

40380503918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18076546.

The product of its (nonzero) digits is 103680, while the sum is 41.

The spelling of 40380503918 in words is "forty billion, three hundred eighty million, five hundred three thousand, nine hundred eighteen".