1899880234 has 12 divisors (see below), whose sum is σ = 3315097314. Its totient is φ = 814234344.

The previous prime is 1899880211. The next prime is 1899880259. The reversal of 1899880234 is 4320889981.

It can be written as a sum of positive squares in only one way, i.e., 1190457009 + 709423225 = 34503^2 + 26635^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9693169 + ... + 9693364.

Almost surely, 2^1899880234 is an apocalyptic number.

1899880234 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1899880234 is a deficient number, since it is larger than the sum of its proper divisors (1415217080).

1899880234 is a wasteful number, since it uses less digits than its factorization.

1899880234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19386549 (or 19386542 counting only the distinct ones).

The product of its (nonzero) digits is 995328, while the sum is 52.

The square root of 1899880234 is about 43587.6156035175. The cubic root of 1899880234 is about 1238.5363049332.

The spelling of 1899880234 in words is "one billion, eight hundred ninety-nine million, eight hundred eighty thousand, two hundred thirty-four".