40132040260644 has 72 divisors (see below), whose sum is σ = 102993331896000. Its totient is φ = 13173288460992.

The previous prime is 40132040260639. The next prime is 40132040260687. The reversal of 40132040260644 is 44606204023104.

40132040260644 is a `hidden beast` number, since 4 + 0 + 1 + 3 + 2 + 0 + 4 + 0 + 2 + 6 + 0 + 644 = 666.

It is a super-2 number, since 2×40132040260644² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 40132040260599 and 40132040260608.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4459582 + ... + 10007594.

It is an arithmetic number, because the mean of its divisors is an integer number (1430462943000).

Almost surely, 2^{40132040260644} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 40132040260644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51496665948000).

40132040260644 is an abundant number, since it is smaller than the sum of its proper divisors (62861291635356).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

40132040260644 is a wasteful number, since it uses less digits than its factorization.

40132040260644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5551089 (or 5551084 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 40132040260644 its reverse (44606204023104), we get a palindrome (84738244283748).

The spelling of 40132040260644 in words is "forty trillion, one hundred thirty-two billion, forty million, two hundred sixty thousand, six hundred forty-four".