1898451914 has 16 divisors (see below), whose sum is σ = 3019420800. Its totient is φ = 892135104.

The previous prime is 1898451883. The next prime is 1898451941. The reversal of 1898451914 is 4191548981.

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 7 ways as a sum of consecutive naturals, for example, 14384 + ... + 63275.

It is an arithmetic number, because the mean of its divisors is an integer number (188713800).

Almost surely, 2^1898451914 is an apocalyptic number.

1898451914 is a deficient number, since it is larger than the sum of its proper divisors (1120968886).

1898451914 is a wasteful number, since it uses less digits than its factorization.

1898451914 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78397.

The product of its digits is 414720, while the sum is 50.

The square root of 1898451914 is about 43571.2280524660. The cubic root of 1898451914 is about 1238.2258520875.

The spelling of 1898451914 in words is "one billion, eight hundred ninety-eight million, four hundred fifty-one thousand, nine hundred fourteen".