40232012340 has 48 divisors (see below), whose sum is σ = 121314993408. Its totient is φ = 9903264384.

The previous prime is 40232012333. The next prime is 40232012357. The reversal of 40232012340 is 4321023204.

It is a super-2 number, since 2×40232012340² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25788972 + ... + 25790531.

It is an arithmetic number, because the mean of its divisors is an integer number (2527395696).

Almost surely, 2^40232012340 is an apocalyptic number.

It is an amenable number.

40232012340 is an abundant number, since it is smaller than the sum of its proper divisors (81082981068).

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

40232012340 is a wasteful number, since it uses less digits than its factorization.

40232012340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51579528 (or 51579526 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 40232012340 its reverse (4321023204), we get a palindrome (44553035544).

The spelling of 40232012340 in words is "forty billion, two hundred thirty-two million, twelve thousand, three hundred forty".