10421423040 has 224 divisors, whose sum is σ = 38009779200. Its totient is φ = 2369765376.

The previous prime is 10421423029. The next prime is 10421423041. The reversal of 10421423040 is 4032412401.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 10421422998 and 10421423016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10421423041) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1333384 + ... + 1341176.

Almost surely, 2^10421423040 is an apocalyptic number.

10421423040 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 10421423040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19004889600).

10421423040 is an abundant number, since it is smaller than the sum of its proper divisors (27588356160).

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

10421423040 is a wasteful number, since it uses less digits than its factorization.

10421423040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8019 (or 8009 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 10421423040 its reverse (4032412401), we get a palindrome (14453835441).

The spelling of 10421423040 in words is "ten billion, four hundred twenty-one million, four hundred twenty-three thousand, forty".