2602004420 has 48 divisors (see below), whose sum is σ = 5530832496. Its totient is φ = 1028160000.

The previous prime is 2602004417. The next prime is 2602004423. The reversal of 2602004420 is 244002062.

It is an interprime number because it is at equal distance from previous prime (2602004417) and next prime (2602004423).

It can be written as a sum of positive squares in 8 ways, for example, as 110796676 + 2491207744 = 10526^2 + 49912^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 2602004392 and 2602004401.

It is not an unprimeable number, because it can be changed into a prime (2602004423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1091630 + ... + 1094010.

It is an arithmetic number, because the mean of its divisors is an integer number (115225677).

Almost surely, 2^2602004420 is an apocalyptic number.

2602004420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2602004420 is an abundant number, since it is smaller than the sum of its proper divisors (2928828076).

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

2602004420 is a wasteful number, since it uses less digits than its factorization.

2602004420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3032 (or 3030 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 2602004420 is about 51009.8463044146. The cubic root of 2602004420 is about 1375.4221372739.

Adding to 2602004420 its reverse (244002062), we get a palindrome (2846006482).

The spelling of 2602004420 in words is "two billion, six hundred two million, four thousand, four hundred twenty".