2194875408 has 80 divisors (see below), whose sum is σ = 6192014400. Its totient is φ = 664419840.

The previous prime is 2194875401. The next prime is 2194875413. The reversal of 2194875408 is 8045784912.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (2194875401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 753058 + ... + 755966.

It is an arithmetic number, because the mean of its divisors is an integer number (77400180).

Almost surely, 2^2194875408 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 2194875408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3096007200).

2194875408 is an abundant number, since it is smaller than the sum of its proper divisors (3997138992).

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

2194875408 is a wasteful number, since it uses less digits than its factorization.

2194875408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4360 (or 4354 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 2194875408 is about 46849.4974145935. The cubic root of 2194875408 is about 1299.5808131706.

The spelling of 2194875408 in words is "two billion, one hundred ninety-four million, eight hundred seventy-five thousand, four hundred eight".