1812975360 has 144 divisors (see below), whose sum is σ = 6617458176. Its totient is φ = 414388224.

The previous prime is 1812975337. The next prime is 1812975427. The reversal of 1812975360 is 635792181.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 6844 + ... + 60603.

Almost surely, 2^1812975360 is an apocalyptic number.

1812975360 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 1812975360, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3308729088).

1812975360 is an abundant number, since it is smaller than the sum of its proper divisors (4804482816).

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

1812975360 is an equidigital number, since it uses as much as digits as its factorization.

1812975360 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67478 (or 67464 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 1812975360 is about 42579.0483688868. The cubic root of 1812975360 is about 1219.3563208468.

The spelling of 1812975360 in words is "one billion, eight hundred twelve million, nine hundred seventy-five thousand, three hundred sixty".