2121870414 has 32 divisors (see below), whose sum is σ = 4317651360. Its totient is φ = 695043072.

The previous prime is 2121870403. The next prime is 2121870461. The reversal of 2121870414 is 4140781212.

It is a congruent number.

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, 112582 + ... + 130070.

It is an arithmetic number, because the mean of its divisors is an integer number (134926605).

Almost surely, 2^2121870414 is an apocalyptic number.

2121870414 is an abundant number, since it is smaller than the sum of its proper divisors (2195780946).

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

2121870414 is a wasteful number, since it uses less digits than its factorization.

2121870414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17844.

The product of its (nonzero) digits is 3584, while the sum is 30.

The square root of 2121870414 is about 46063.7646529243. The cubic root of 2121870414 is about 1285.0093443077.

The spelling of 2121870414 in words is "two billion, one hundred twenty-one million, eight hundred seventy thousand, four hundred fourteen".