1813496256 has 448 divisors, whose sum is σ = 6452006400. Its totient is φ = 492134400.

The previous prime is 1813496231. The next prime is 1813496257. The reversal of 1813496256 is 6526943181.

1813496256 is a `hidden beast` number, since 1 + 8 + 13 + 4 + 9 + 625 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1813496257) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 10131175 + ... + 10131353.

It is an arithmetic number, because the mean of its divisors is an integer number (14401800).

Almost surely, 2^1813496256 is an apocalyptic number.

1813496256 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 1813496256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3226003200).

1813496256 is an abundant number, since it is smaller than the sum of its proper divisors (4638510144).

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

1813496256 is a wasteful number, since it uses less digits than its factorization.

1813496256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 249 counting only the distinct ones).

The product of its digits is 311040, while the sum is 45.

The square root of 1813496256 is about 42585.1647407874. The cubic root of 1813496256 is about 1219.4730896721.

The spelling of 1813496256 in words is "one billion, eight hundred thirteen million, four hundred ninety-six thousand, two hundred fifty-six".