40340140452 has 96 divisors (see below), whose sum is σ = 105178653440. Its totient is φ = 13370676480.

The previous prime is 40340140433. The next prime is 40340140457. The reversal of 40340140452 is 25404104304.

It is a happy number.

40340140452 is a `hidden beast` number, since 40 + 34 + 0 + 140 + 452 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (40340140457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18875928 + ... + 18878064.

Almost surely, 2^40340140452 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 40340140452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52589326720).

40340140452 is an abundant number, since it is smaller than the sum of its proper divisors (64838512988).

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

40340140452 is a wasteful number, since it uses less digits than its factorization.

40340140452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058 (or 3050 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

Adding to 40340140452 its reverse (25404104304), we get a palindrome (65744244756).

The spelling of 40340140452 in words is "forty billion, three hundred forty million, one hundred forty thousand, four hundred fifty-two".