813422484 has 36 divisors (see below), whose sum is σ = 2349887904. Its totient is φ = 232406352.

The previous prime is 813422483. The next prime is 813422497. The reversal of 813422484 is 484224318.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×813422484² = 1323312274953460512, which contains 22 as substring.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (813422483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1613682 + ... + 1614185.

It is an arithmetic number, because the mean of its divisors is an integer number (65274664).

Almost surely, 2^813422484 is an apocalyptic number.

813422484 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

813422484 is an abundant number, since it is smaller than the sum of its proper divisors (1536465420).

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

813422484 is a wasteful number, since it uses less digits than its factorization.

813422484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3227884 (or 3227879 counting only the distinct ones).

The product of its digits is 49152, while the sum is 36.

The square root of 813422484 is about 28520.5624769218. The cubic root of 813422484 is about 933.4808024919.

The spelling of 813422484 in words is "eight hundred thirteen million, four hundred twenty-two thousand, four hundred eighty-four".