1898045536 has 24 divisors (see below), whose sum is σ = 3837773520. Its totient is φ = 923372928.

The previous prime is 1898045531. The next prime is 1898045549. The reversal of 1898045536 is 6355408981.

It is a self number, because there is not a number n which added to its sum of digits gives 1898045536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1898045531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 800356 + ... + 802723.

It is an arithmetic number, because the mean of its divisors is an integer number (159907230).

Almost surely, 2^1898045536 is an apocalyptic number.

1898045536 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1898045536 is an abundant number, since it is smaller than the sum of its proper divisors (1939727984).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1898045536 is a wasteful number, since it uses less digits than its factorization.

1898045536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603126 (or 1603118 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 49.

The square root of 1898045536 is about 43566.5644273220. The cubic root of 1898045536 is about 1238.1374952445.

It can be divided in two parts, 18980 and 45536, that added together give a square (64516 = 254²).

The spelling of 1898045536 in words is "one billion, eight hundred ninety-eight million, forty-five thousand, five hundred thirty-six".