2102664450 has 96 divisors (see below), whose sum is σ = 5538484800. Its totient is φ = 526417920.

The previous prime is 2102664413. The next prime is 2102664457. The reversal of 2102664450 is 544662012.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (2102664457) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 318786 + ... + 325314.

It is an arithmetic number, because the mean of its divisors is an integer number (57692550).

Almost surely, 2^2102664450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2102664450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2769242400).

2102664450 is an abundant number, since it is smaller than the sum of its proper divisors (3435820350).

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

2102664450 is a wasteful number, since it uses less digits than its factorization.

2102664450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6676 (or 6671 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

The square root of 2102664450 is about 45854.8192668993. The cubic root of 2102664450 is about 1281.1205296103.

The spelling of 2102664450 in words is "two billion, one hundred two million, six hundred sixty-four thousand, four hundred fifty".