40323040134144 has 176 divisors, whose sum is σ = 107764691779008. Its totient is φ = 13404903866368.

The previous prime is 40323040134107. The next prime is 40323040134149. The reversal of 40323040134144 is 44143104032304.

It is a super-2 number, since 2×40323040134144² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (40323040134149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2031070522 + ... + 2031090374.

It is an arithmetic number, because the mean of its divisors is an integer number (612299385108).

Almost surely, 2^{40323040134144} 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 40323040134144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (53882345889504).

40323040134144 is an abundant number, since it is smaller than the sum of its proper divisors (67441651644864).

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

40323040134144 is a wasteful number, since it uses less digits than its factorization.

40323040134144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21620 (or 21602 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 33.

Adding to 40323040134144 its reverse (44143104032304), we get a palindrome (84466144166448).

The spelling of 40323040134144 in words is "forty trillion, three hundred twenty-three billion, forty million, one hundred thirty-four thousand, one hundred forty-four".