40436487188 has 12 divisors (see below), whose sum is σ = 70956672192. Its totient is φ = 20163152280.

The previous prime is 40436487163. The next prime is 40436487227. The reversal of 40436487188 is 88178463404.

It is a super-2 number, since 2×40436487188² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (53) coincides with the sum of the digits of its distinct prime factors.

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, 13771178 + ... + 13774113.

It is an arithmetic number, because the mean of its divisors is an integer number (5913056016).

Almost surely, 2^40436487188 is an apocalyptic number.

It is an amenable number.

40436487188 is a deficient number, since it is larger than the sum of its proper divisors (30520185004).

40436487188 is a wasteful number, since it uses less digits than its factorization.

40436487188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27545662 (or 27545660 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 53.

The spelling of 40436487188 in words is "forty billion, four hundred thirty-six million, four hundred eighty-seven thousand, one hundred eighty-eight".