1812536320 has 176 divisors, whose sum is σ = 5027563008. Its totient is φ = 614154240.

The previous prime is 1812536317. The next prime is 1812536357. The reversal of 1812536320 is 236352181.

It is a super-2 number, since 2×1812536320² = 6570575822638284800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3691275 + ... + 3691765.

Almost surely, 2^1812536320 is an apocalyptic number.

1812536320 is a gapful number since it is divisible by the number (10) 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 1812536320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2513781504).

1812536320 is an abundant number, since it is smaller than the sum of its proper divisors (3215026688).

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

1812536320 is a wasteful number, since it uses less digits than its factorization.

1812536320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626 (or 608 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 1812536320 is about 42573.8924694466. The cubic root of 1812536320 is about 1219.2578842416.

It can be divided in two parts, 18125 and 36320, that added together give a palindrome (54445).

The spelling of 1812536320 in words is "one billion, eight hundred twelve million, five hundred thirty-six thousand, three hundred twenty".