812612248 has 64 divisors (see below), whose sum is σ = 1806465600. Its totient is φ = 335301120.

The previous prime is 812612239. The next prime is 812612263. The reversal of 812612248 is 842216218.

It is a super-2 number, since 2×812612248² = 1320677331199227008, 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, 1073086 + ... + 1073842.

It is an arithmetic number, because the mean of its divisors is an integer number (28226025).

Almost surely, 2^812612248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 812612248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (903232800).

812612248 is an abundant number, since it is smaller than the sum of its proper divisors (993853352).

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

812612248 is a wasteful number, since it uses less digits than its factorization.

812612248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1460 (or 1456 counting only the distinct ones).

The product of its digits is 12288, while the sum is 34.

The square root of 812612248 is about 28506.3545196505. The cubic root of 812612248 is about 933.1707581910.

The spelling of 812612248 in words is "eight hundred twelve million, six hundred twelve thousand, two hundred forty-eight".