10423440040 has 192 divisors, whose sum is σ = 26467948800. Its totient is φ = 3689726976.

The previous prime is 10423440023. The next prime is 10423440059. The reversal of 10423440040 is 4004432401.

It is a junction number, because it is equal to n+sod(n) for n = 10423439993 and 10423440020.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16838851 + ... + 16839469.

It is an arithmetic number, because the mean of its divisors is an integer number (137853900).

Almost surely, 2^10423440040 is an apocalyptic number.

10423440040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10423440040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13233974400).

10423440040 is an abundant number, since it is smaller than the sum of its proper divisors (16044508760).

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

10423440040 is a wasteful number, since it uses less digits than its factorization.

10423440040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 756 (or 739 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 10423440040 its reverse (4004432401), we get a palindrome (14427872441).

The spelling of 10423440040 in words is "ten billion, four hundred twenty-three million, four hundred forty thousand, forty".