2100420344 has 32 divisors (see below), whose sum is σ = 4299879600. Its totient is φ = 953944320.

The previous prime is 2100420277. The next prime is 2100420353. The reversal of 2100420344 is 4430240012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104174 + ... + 122690.

Almost surely, 2^2100420344 is an apocalyptic number.

It is an amenable number.

2100420344 is an abundant number, since it is smaller than the sum of its proper divisors (2199459256).

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

2100420344 is a wasteful number, since it uses less digits than its factorization.

2100420344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19823 (or 19819 counting only the distinct ones).

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

The square root of 2100420344 is about 45830.3430491198. The cubic root of 2100420344 is about 1280.6646011554.

Adding to 2100420344 its reverse (4430240012), we get a palindrome (6530660356).

The spelling of 2100420344 in words is "two billion, one hundred million, four hundred twenty thousand, three hundred forty-four".