13403252444220 has 288 divisors, whose sum is σ = 42101955133056. Its totient is φ = 3448811520000.

The previous prime is 13403252444191. The next prime is 13403252444269. The reversal of 13403252444220 is 2244425230431.

13403252444220 is a `hidden beast` number, since 1 + 3 + 40 + 32 + 524 + 4 + 42 + 20 = 666.

It is a super-2 number, since 2×13403252444220² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 620481420 + ... + 620503020.

It is an arithmetic number, because the mean of its divisors is an integer number (146187344212).

Almost surely, 2^{13403252444220} is an apocalyptic number.

13403252444220 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 13403252444220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21050977566528).

13403252444220 is an abundant number, since it is smaller than the sum of its proper divisors (28698702688836).

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

13403252444220 is a wasteful number, since it uses less digits than its factorization.

13403252444220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22421 (or 22416 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 36.

Adding to 13403252444220 its reverse (2244425230431), we get a palindrome (15647677674651).

The spelling of 13403252444220 in words is "thirteen trillion, four hundred three billion, two hundred fifty-two million, four hundred forty-four thousand, two hundred twenty".