2130022404 has 72 divisors (see below), whose sum is σ = 5461911000. Its totient is φ = 699815424.

The previous prime is 2130022399. The next prime is 2130022409. The reversal of 2130022404 is 4042200312.

It is an interprime number because it is at equal distance from previous prime (2130022399) and next prime (2130022409).

It can be written as a sum of positive squares in 4 ways, for example, as 13838400 + 2116184004 = 3720^2 + 46002^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2130022409) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1245502 + ... + 1247210.

It is an arithmetic number, because the mean of its divisors is an integer number (75859875).

Almost surely, 2^2130022404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2130022404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2730955500).

2130022404 is an abundant number, since it is smaller than the sum of its proper divisors (3331888596).

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

2130022404 is a wasteful number, since it uses less digits than its factorization.

2130022404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197 (or 2192 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 2130022404 is about 46152.1657563326. The cubic root of 2130022404 is about 1286.6528623299.

Adding to 2130022404 its reverse (4042200312), we get a palindrome (6172222716).

The spelling of 2130022404 in words is "two billion, one hundred thirty million, twenty-two thousand, four hundred four".