2102030420 has 144 divisors (see below), whose sum is σ = 5477472000. Its totient is φ = 673650432.

The previous prime is 2102030387. The next prime is 2102030471. The reversal of 2102030420 is 240302012.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 2102030395 and 2102030404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1470266 + ... + 1471694.

It is an arithmetic number, because the mean of its divisors is an integer number (38038000).

Almost surely, 2^2102030420 is an apocalyptic number.

2102030420 is a gapful number since it is divisible by the number (20) 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 2102030420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2738736000).

2102030420 is an abundant number, since it is smaller than the sum of its proper divisors (3375441580).

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

2102030420 is a wasteful number, since it uses less digits than its factorization.

2102030420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1550 (or 1541 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 2102030420 is about 45847.9052956621. The cubic root of 2102030420 is about 1280.9917484812.

Adding to 2102030420 its reverse (240302012), we get a palindrome (2342332432).

The spelling of 2102030420 in words is "two billion, one hundred two million, thirty thousand, four hundred twenty".