1899289929 has 32 divisors (see below), whose sum is σ = 2816722944. Its totient is φ = 1132243200.

The previous prime is 1899289891. The next prime is 1899289939. The reversal of 1899289929 is 9299829981.

It is not a de Polignac number, because 1899289929 - 2⁷ = 1899289801 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1899289929.

It is not an unprimeable number, because it can be changed into a prime (1899289939) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 171762 + ... + 182484.

It is an arithmetic number, because the mean of its divisors is an integer number (88022592).

Almost surely, 2^1899289929 is an apocalyptic number.

It is an amenable number.

1899289929 is a deficient number, since it is larger than the sum of its proper divisors (917433015).

1899289929 is a wasteful number, since it uses less digits than its factorization.

1899289929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10917.

The product of its digits is 15116544, while the sum is 66.

The square root of 1899289929 is about 43580.8436012889. The cubic root of 1899289929 is about 1238.4080179156.

The spelling of 1899289929 in words is "one billion, eight hundred ninety-nine million, two hundred eighty-nine thousand, nine hundred twenty-nine".