2130404420 has 48 divisors (see below), whose sum is σ = 4504111920. Its totient is φ = 846422016.

The previous prime is 2130404401. The next prime is 2130404447. The reversal of 2130404420 is 244040312.

It can be written as a sum of positive squares in 8 ways, for example, as 30382144 + 2100022276 = 5512^2 + 45826^2 .

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 = 2130404392 and 2130404401.

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, 2632976 + ... + 2633784.

It is an arithmetic number, because the mean of its divisors is an integer number (93835665).

Almost surely, 2^2130404420 is an apocalyptic number.

2130404420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2130404420 is an abundant number, since it is smaller than the sum of its proper divisors (2373707500).

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

2130404420 is a wasteful number, since it uses less digits than its factorization.

2130404420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1544 (or 1542 counting only the distinct ones).

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

The square root of 2130404420 is about 46156.3042281333. The cubic root of 2130404420 is about 1286.7297774205.

Adding to 2130404420 its reverse (244040312), we get a palindrome (2374444732).

The spelling of 2130404420 in words is "two billion, one hundred thirty million, four hundred four thousand, four hundred twenty".