2100004340 has 24 divisors (see below), whose sum is σ = 5040010752. Its totient is φ = 720001440.

The previous prime is 2100004253. The next prime is 2100004349. The reversal of 2100004340 is 434000012.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100004349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7499876 + ... + 7500155.

It is an arithmetic number, because the mean of its divisors is an integer number (210000448).

Almost surely, 2^2100004340 is an apocalyptic number.

2100004340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2100004340 is an abundant number, since it is smaller than the sum of its proper divisors (2940006412).

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

2100004340 is a wasteful number, since it uses less digits than its factorization.

2100004340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15000047 (or 15000045 counting only the distinct ones).

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

The square root of 2100004340 is about 45825.8043028161. The cubic root of 2100004340 is about 1280.5800471636.

Adding to 2100004340 its reverse (434000012), we get a palindrome (2534004352).

The spelling of 2100004340 in words is "two billion, one hundred million, four thousand, three hundred forty".