812124480 has 112 divisors (see below), whose sum is σ = 2690676864. Its totient is φ = 207144960.

The previous prime is 812124431. The next prime is 812124571. The reversal of 812124480 is 84421218.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 3690 + ... + 40470.

Almost surely, 2^812124480 is an apocalyptic number.

812124480 is a gapful number since it is divisible by the number (80) 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 812124480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1345338432).

812124480 is an abundant number, since it is smaller than the sum of its proper divisors (1878552384).

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

812124480 is a wasteful number, since it uses less digits than its factorization.

812124480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36824 (or 36814 counting only the distinct ones).

The product of its (nonzero) digits is 4096, while the sum is 30.

The square root of 812124480 is about 28497.7978096554. The cubic root of 812124480 is about 932.9840098628.

Adding to 812124480 its reverse (84421218), we get a palindrome (896545698).

The spelling of 812124480 in words is "eight hundred twelve million, one hundred twenty-four thousand, four hundred eighty".