40001343412 has 12 divisors (see below), whose sum is σ = 73045931616. Its totient is φ = 19131077240.

The previous prime is 40001343407. The next prime is 40001343419. The reversal of 40001343412 is 21434310004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40001343419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217398514 + ... + 217398697.

It is an arithmetic number, because the mean of its divisors is an integer number (6087160968).

Almost surely, 2^40001343412 is an apocalyptic number.

It is an amenable number.

40001343412 is a deficient number, since it is larger than the sum of its proper divisors (33044588204).

40001343412 is a wasteful number, since it uses less digits than its factorization.

40001343412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 434797238 (or 434797236 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 40001343412 its reverse (21434310004), we get a palindrome (61435653416).

The spelling of 40001343412 in words is "forty billion, one million, three hundred forty-three thousand, four hundred twelve".