1812630528 has 176 divisors, whose sum is σ = 5473841760. Its totient is φ = 592330752.

The previous prime is 1812630517. The next prime is 1812630551. The reversal of 1812630528 is 8250362181.

It is a happy number.

1812630528 is a `hidden beast` number, since 1 + 8 + 12 + 630 + 5 + 2 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1812630492 and 1812630501.

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, 1464726 + ... + 1465962.

Almost surely, 2^1812630528 is an apocalyptic number.

1812630528 is a gapful number since it is divisible by the number (18) 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 1812630528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2736920880).

1812630528 is an abundant number, since it is smaller than the sum of its proper divisors (3661211232).

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

1812630528 is a wasteful number, since it uses less digits than its factorization.

1812630528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319 (or 1295 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 36.

The square root of 1812630528 is about 42574.9988608338. The cubic root of 1812630528 is about 1219.2790078380.

The spelling of 1812630528 in words is "one billion, eight hundred twelve million, six hundred thirty thousand, five hundred twenty-eight".