1898656256 has 160 divisors (see below), whose sum is σ = 4676272128. Its totient is φ = 752209920.

The previous prime is 1898656157. The next prime is 1898656273. The reversal of 1898656256 is 6526568981.

It is a super-3 number, since 3×1898656256³ (a number of 29 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (56).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2555021 + ... + 2555763.

Almost surely, 2^1898656256 is an apocalyptic number.

1898656256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1898656256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2338136064).

1898656256 is an abundant number, since it is smaller than the sum of its proper divisors (2777615872).

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

1898656256 is an equidigital number, since it uses as much as digits as its factorization.

1898656256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 806 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 56.

The square root of 1898656256 is about 43573.5729083581. The cubic root of 1898656256 is about 1238.2702764362.

The spelling of 1898656256 in words is "one billion, eight hundred ninety-eight million, six hundred fifty-six thousand, two hundred fifty-six".