814632492 has 72 divisors (see below), whose sum is σ = 2000842480. Its totient is φ = 257938560.

The previous prime is 814632473. The next prime is 814632493. The reversal of 814632492 is 294236418.

It is a self number, because there is not a number n which added to its sum of digits gives 814632492.

It is not an unprimeable number, because it can be changed into a prime (814632493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1148634 + ... + 1149342.

Almost surely, 2^814632492 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 814632492, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1000421240).

814632492 is an abundant number, since it is smaller than the sum of its proper divisors (1186209988).

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

814632492 is a wasteful number, since it uses less digits than its factorization.

814632492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 943 (or 918 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 814632492 is about 28541.7674995786. The cubic root of 814632492 is about 933.9434401538.

The spelling of 814632492 in words is "eight hundred fourteen million, six hundred thirty-two thousand, four hundred ninety-two".