13001822420 has 48 divisors (see below), whose sum is σ = 27991208448. Its totient is φ = 5069994240.

The previous prime is 13001822371. The next prime is 13001822447. The reversal of 13001822420 is 2422810031.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214009 + ... + 1224671.

It is an arithmetic number, because the mean of its divisors is an integer number (583150176).

Almost surely, 2^13001822420 is an apocalyptic number.

13001822420 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 13001822420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13995604224).

13001822420 is an abundant number, since it is smaller than the sum of its proper divisors (14989386028).

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

13001822420 is a wasteful number, since it uses less digits than its factorization.

13001822420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12200 (or 12198 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

The spelling of 13001822420 in words is "thirteen billion, one million, eight hundred twenty-two thousand, four hundred twenty".