40402343244032 has 288 divisors, whose sum is σ = 103371510783744. Its totient is φ = 15301715558400.

The previous prime is 40402343244017. The next prime is 40402343244119. The reversal of 40402343244032 is 23044234320404.

It is a junction number, because it is equal to n+sod(n) for n = 40402343243983 and 40402343244001.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 223778948 + ... + 223959420.

It is an arithmetic number, because the mean of its divisors is an integer number (358928856888).

Almost surely, 2^{40402343244032} 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 40402343244032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51685755391872).

40402343244032 is an abundant number, since it is smaller than the sum of its proper divisors (62969167539712).

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

40402343244032 is a wasteful number, since it uses less digits than its factorization.

40402343244032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 180825 (or 180811 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 35.

Adding to 40402343244032 its reverse (23044234320404), we get a palindrome (63446577564436).

The spelling of 40402343244032 in words is "forty trillion, four hundred two billion, three hundred forty-three million, two hundred forty-four thousand, thirty-two".