40144018036 has 12 divisors (see below), whose sum is σ = 72674515620. Its totient is φ = 19379870720.

The previous prime is 40144018027. The next prime is 40144018037. The reversal of 40144018036 is 63081044104.

It can be written as a sum of positive squares in 2 ways, for example, as 6939889636 + 33204128400 = 83306^2 + 182220^2 .

It is a super-2 number, since 2×40144018036² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40144017989 and 40144018007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40144018037) 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, 173034445 + ... + 173034676.

It is an arithmetic number, because the mean of its divisors is an integer number (6056209635).

Almost surely, 2^40144018036 is an apocalyptic number.

It is an amenable number.

40144018036 is a deficient number, since it is larger than the sum of its proper divisors (32530497584).

40144018036 is a wasteful number, since it uses less digits than its factorization.

40144018036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346069154 (or 346069152 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 31.

The spelling of 40144018036 in words is "forty billion, one hundred forty-four million, eighteen thousand, thirty-six".