10421240035440 has 320 divisors, whose sum is σ = 35458335771264. Its totient is φ = 2516047233024.

The previous prime is 10421240035397. The next prime is 10421240035477. The reversal of 10421240035440 is 4453004212401.

10421240035440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 10421240035398 and 10421240035407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 673503544 + ... + 673519016.

Almost surely, 2^{10421240035440} is an apocalyptic number.

10421240035440 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 10421240035440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17729167885632).

10421240035440 is an abundant number, since it is smaller than the sum of its proper divisors (25037095735824).

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

10421240035440 is a wasteful number, since it uses less digits than its factorization.

10421240035440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19628 (or 19622 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 30.

Adding to 10421240035440 its reverse (4453004212401), we get a palindrome (14874244247841).

The spelling of 10421240035440 in words is "ten trillion, four hundred twenty-one billion, two hundred forty million, thirty-five thousand, four hundred forty".