1898325216 has 72 divisors (see below), whose sum is σ = 5405596560. Its totient is φ = 631927296.

The previous prime is 1898325197. The next prime is 1898325227. The reversal of 1898325216 is 6125238981.

1898325216 is a `hidden beast` number, since 1 + 8 + 98 + 32 + 521 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 233020 + ... + 241028.

It is an arithmetic number, because the mean of its divisors is an integer number (75077730).

Almost surely, 2^1898325216 is an apocalyptic number.

1898325216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1898325216 is an abundant number, since it is smaller than the sum of its proper divisors (3507271344).

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

1898325216 is a wasteful number, since it uses less digits than its factorization.

1898325216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8848 (or 8837 counting only the distinct ones).

The product of its digits is 207360, while the sum is 45.

The square root of 1898325216 is about 43569.7741100410. The cubic root of 1898325216 is about 1238.1983060946.

The spelling of 1898325216 in words is "one billion, eight hundred ninety-eight million, three hundred twenty-five thousand, two hundred sixteen".