40400231324 has 12 divisors (see below), whose sum is σ = 70855113504. Its totient is φ = 20155913184.

The previous prime is 40400231321. The next prime is 40400231329. The reversal of 40400231324 is 42313200404.

It is a self number, because there is not a number n which added to its sum of digits gives 40400231324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40400231321) 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, 11048564 + ... + 11052219.

It is an arithmetic number, because the mean of its divisors is an integer number (5904592792).

Almost surely, 2^40400231324 is an apocalyptic number.

It is an amenable number.

40400231324 is a deficient number, since it is larger than the sum of its proper divisors (30454882180).

40400231324 is a wasteful number, since it uses less digits than its factorization.

40400231324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22101244 (or 22101242 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 40400231324 its reverse (42313200404), we get a palindrome (82713431728).

The spelling of 40400231324 in words is "forty billion, four hundred million, two hundred thirty-one thousand, three hundred twenty-four".