812895480 has 64 divisors (see below), whose sum is σ = 2709655200. Its totient is φ = 216771840.

The previous prime is 812895437. The next prime is 812895493. The reversal of 812895480 is 84598218.

It is a happy number.

812895480 is a `hidden beast` number, since 81 + 2 + 8 + 95 + 480 = 666.

It is a super-2 number, since 2×812895480² = 1321598122808860800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a zygodrome in base 2.

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, 375261 + ... + 377420.

Almost surely, 2^812895480 is an apocalyptic number.

It is an amenable number.

812895480 is an abundant number, since it is smaller than the sum of its proper divisors (1896759720).

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

812895480 is a wasteful number, since it uses less digits than its factorization.

812895480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752701 (or 752691 counting only the distinct ones).

The product of its (nonzero) digits is 184320, while the sum is 45.

The square root of 812895480 is about 28511.3219616348. The cubic root of 812895480 is about 933.2791629558.

The spelling of 812895480 in words is "eight hundred twelve million, eight hundred ninety-five thousand, four hundred eighty".