1318438472 has 32 divisors (see below), whose sum is σ = 2670857280. Its totient is φ = 606538560.

The previous prime is 1318438421. The next prime is 1318438507. The reversal of 1318438472 is 2748348131.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11963 + ... + 52725.

It is an arithmetic number, because the mean of its divisors is an integer number (83464290).

Almost surely, 2^1318438472 is an apocalyptic number.

It is an amenable number.

1318438472 is an abundant number, since it is smaller than the sum of its proper divisors (1352418808).

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

1318438472 is a wasteful number, since it uses less digits than its factorization.

1318438472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41093 (or 41089 counting only the distinct ones).

The product of its digits is 129024, while the sum is 41.

The square root of 1318438472 is about 36310.3080680955. The cubic root of 1318438472 is about 1096.5285802594.

The spelling of 1318438472 in words is "one billion, three hundred eighteen million, four hundred thirty-eight thousand, four hundred seventy-two".