40012211340 has 144 divisors (see below), whose sum is σ = 127833189120. Its totient is φ = 10102423680.

The previous prime is 40012211339. The next prime is 40012211341. The reversal of 40012211340 is 4311221004.

40012211340 is a `hidden beast` number, since 400 + 1 + 221 + 1 + 3 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (40012211339) and next prime (40012211341).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (40012211341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10897705 + ... + 10901375.

It is an arithmetic number, because the mean of its divisors is an integer number (887730480).

Almost surely, 2^40012211340 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 40012211340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63916594560).

40012211340 is an abundant number, since it is smaller than the sum of its proper divisors (87820977780).

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

40012211340 is a wasteful number, since it uses less digits than its factorization.

40012211340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6892 (or 6887 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 40012211340 its reverse (4311221004), we get a palindrome (44323432344).

The spelling of 40012211340 in words is "forty billion, twelve million, two hundred eleven thousand, three hundred forty".