40712306140 has 72 divisors (see below), whose sum is σ = 94905782496. Its totient is φ = 14657808000.

The previous prime is 40712306119. The next prime is 40712306177. The reversal of 40712306140 is 4160321704.

It is a junction number, because it is equal to n+sod(n) for n = 40712306099 and 40712306108.

It is a congruent number.

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, 161137 + ... + 327703.

It is an arithmetic number, because the mean of its divisors is an integer number (1318135868).

Almost surely, 2^40712306140 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 40712306140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47452891248).

40712306140 is an abundant number, since it is smaller than the sum of its proper divisors (54193476356).

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

40712306140 is a wasteful number, since it uses less digits than its factorization.

40712306140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166699 (or 166686 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

Adding to 40712306140 its reverse (4160321704), we get a palindrome (44872627844).

The spelling of 40712306140 in words is "forty billion, seven hundred twelve million, three hundred six thousand, one hundred forty".