1899334229 has 4 divisors (see below), whose sum is σ = 2045436876. Its totient is φ = 1753231584.

The previous prime is 1899334223. The next prime is 1899334237. The reversal of 1899334229 is 9224339981.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1177176100 + 722158129 = 34310^2 + 26873^2 .

It is a de Polignac number, because none of the positive numbers 2^k-1899334229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1899334223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 73051304 + ... + 73051329.

It is an arithmetic number, because the mean of its divisors is an integer number (511359219).

Almost surely, 2^1899334229 is an apocalyptic number.

It is an amenable number.

1899334229 is a deficient number, since it is larger than the sum of its proper divisors (146102647).

1899334229 is a wasteful number, since it uses less digits than its factorization.

1899334229 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146102646.

The product of its digits is 839808, while the sum is 50.

The square root of 1899334229 is about 43581.3518491568. The cubic root of 1899334229 is about 1238.4176462592.

The spelling of 1899334229 in words is "one billion, eight hundred ninety-nine million, three hundred thirty-four thousand, two hundred twenty-nine".