2189995430 has 32 divisors (see below), whose sum is σ = 4517462016. Its totient is φ = 748800864.

The previous prime is 2189995427. The next prime is 2189995441. The reversal of 2189995430 is 345999812.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16934 + ... + 68313.

It is an arithmetic number, because the mean of its divisors is an integer number (141170688).

Almost surely, 2^2189995430 is an apocalyptic number.

2189995430 is an abundant number, since it is smaller than the sum of its proper divisors (2327466586).

2189995430 is a wasteful number, since it uses less digits than its factorization.

2189995430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85628.

The product of its (nonzero) digits is 699840, while the sum is 50.

The square root of 2189995430 is about 46797.3869997033. The cubic root of 2189995430 is about 1298.6169571393.

The spelling of 2189995430 in words is "two billion, one hundred eighty-nine million, nine hundred ninety-five thousand, four hundred thirty".