40321024130440 has 64 divisors (see below), whose sum is σ = 95737710139200. Its totient is φ = 15241058350848.

The previous prime is 40321024130407. The next prime is 40321024130477. The reversal of 40321024130440 is 4403142012304.

It is a junction number, because it is equal to n+sod(n) for n = 40321024130399 and 40321024130408.

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, 66516894 + ... + 67120333.

It is an arithmetic number, because the mean of its divisors is an integer number (1495901720925).

Almost surely, 2^{40321024130440} is an apocalyptic number.

40321024130440 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

40321024130440 is an abundant number, since it is smaller than the sum of its proper divisors (55416686008760).

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

40321024130440 is a wasteful number, since it uses less digits than its factorization.

40321024130440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133637654 (or 133637650 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 40321024130440 its reverse (4403142012304), we get a palindrome (44724166142744).

The spelling of 40321024130440 in words is "forty trillion, three hundred twenty-one billion, twenty-four million, one hundred thirty thousand, four hundred forty".