13423235002440 has 256 divisors, whose sum is σ = 42532162041600. Its totient is φ = 3379703906304.

The previous prime is 13423235002433. The next prime is 13423235002483. The reversal of 13423235002440 is 4420053232431.

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, 2106263094 + ... + 2106269466.

It is an arithmetic number, because the mean of its divisors is an integer number (166141257975).

Almost surely, 2^{13423235002440} is an apocalyptic number.

13423235002440 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 13423235002440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21266081020800).

13423235002440 is an abundant number, since it is smaller than the sum of its proper divisors (29108927039160).

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

13423235002440 is a wasteful number, since it uses less digits than its factorization.

13423235002440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9376 (or 9372 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 13423235002440 its reverse (4420053232431), we get a palindrome (17843288234871).

The spelling of 13423235002440 in words is "thirteen trillion, four hundred twenty-three billion, two hundred thirty-five million, two thousand, four hundred forty".