1318225832 has 160 divisors (see below), whose sum is σ = 3339688320. Its totient is φ = 482065920.

The previous prime is 1318225807. The next prime is 1318225861. The reversal of 1318225832 is 2385228131.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1318225792 and 1318225801.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 3591713 + ... + 3592079.

It is an arithmetic number, because the mean of its divisors is an integer number (20873052).

Almost surely, 2^1318225832 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 1318225832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1669844160).

1318225832 is an abundant number, since it is smaller than the sum of its proper divisors (2021462488).

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

1318225832 is a wasteful number, since it uses less digits than its factorization.

1318225832 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429 (or 404 counting only the distinct ones).

The product of its digits is 23040, while the sum is 35.

The square root of 1318225832 is about 36307.3798558916. The cubic root of 1318225832 is about 1096.4696270916.

The spelling of 1318225832 in words is "one billion, three hundred eighteen million, two hundred twenty-five thousand, eight hundred thirty-two".