40137540232 has 16 divisors (see below), whose sum is σ = 75277765260. Its totient is φ = 20063469504.

The previous prime is 40137540229. The next prime is 40137540241. The reversal of 40137540232 is 23204573104.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 40106470756 + 31069476 = 200266^2 + 5574^2 .

It is a super-2 number, since 2×40137540232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 40137540194 and 40137540203.

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, 630303 + ... + 691054.

Almost surely, 2^40137540232 is an apocalyptic number.

It is an amenable number.

40137540232 is a deficient number, since it is larger than the sum of its proper divisors (35140225028).

40137540232 is a wasteful number, since it uses less digits than its factorization.

40137540232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1325160 (or 1325156 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The spelling of 40137540232 in words is "forty billion, one hundred thirty-seven million, five hundred forty thousand, two hundred thirty-two".