13602002420 has 12 divisors (see below), whose sum is σ = 28564205124. Its totient is φ = 5440800960.

The previous prime is 13602002399. The next prime is 13602002441. The reversal of 13602002420 is 2420020631.

It is an interprime number because it is at equal distance from previous prime (13602002399) and next prime (13602002441).

It can be written as a sum of positive squares in 2 ways, for example, as 1859679376 + 11742323044 = 43124^2 + 108362^2 .

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 680100121 = 13602002420 / (1 + 3 + 6 + 0 + 2 + 0 + 0 + 2 + 4 + 2 + 0).

It is a junction number, because it is equal to n+sod(n) for n = 13602002392 and 13602002401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340050041 + ... + 340050080.

It is an arithmetic number, because the mean of its divisors is an integer number (2380350427).

Almost surely, 2^13602002420 is an apocalyptic number.

13602002420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13602002420 is an abundant number, since it is smaller than the sum of its proper divisors (14962202704).

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

13602002420 is a wasteful number, since it uses less digits than its factorization.

13602002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 680100130 (or 680100128 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

The spelling of 13602002420 in words is "thirteen billion, six hundred two million, two thousand, four hundred twenty".