812450412 has 120 divisors (see below), whose sum is σ = 2248547840. Its totient is φ = 255091680.

The previous prime is 812450411. The next prime is 812450453. The reversal of 812450412 is 214054218.

812450412 is a `hidden beast` number, since 8 + 1 + 245 + 0 + 412 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (812450411) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1668033 + ... + 1668519.

Almost surely, 2^812450412 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 812450412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1124273920).

812450412 is an abundant number, since it is smaller than the sum of its proper divisors (1436097428).

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

812450412 is a wasteful number, since it uses less digits than its factorization.

812450412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793 (or 782 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 27.

The square root of 812450412 is about 28503.5157831451. The cubic root of 812450412 is about 933.1088054578.

The spelling of 812450412 in words is "eight hundred twelve million, four hundred fifty thousand, four hundred twelve".