40442430140 has 96 divisors (see below), whose sum is σ = 97951472640. Its totient is φ = 13739272704.

The previous prime is 40442430137. The next prime is 40442430157. The reversal of 40442430140 is 4103424404.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12407831 + ... + 12411089.

It is an arithmetic number, because the mean of its divisors is an integer number (1020327840).

Almost surely, 2^40442430140 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 40442430140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48975736320).

40442430140 is an abundant number, since it is smaller than the sum of its proper divisors (57509042500).

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

40442430140 is a wasteful number, since it uses less digits than its factorization.

40442430140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4059 (or 4057 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 26.

Adding to 40442430140 its reverse (4103424404), we get a palindrome (44545854544).

The spelling of 40442430140 in words is "forty billion, four hundred forty-two million, four hundred thirty thousand, one hundred forty".