1478264868 has 72 divisors (see below), whose sum is σ = 3856000512. Its totient is φ = 477245952.

The previous prime is 1478264857. The next prime is 1478264897. The reversal of 1478264868 is 8684628741.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 159621 + ... + 168627.

Almost surely, 2^1478264868 is an apocalyptic number.

1478264868 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1478264868, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1928000256).

1478264868 is an abundant number, since it is smaller than the sum of its proper divisors (2377735644).

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

1478264868 is a wasteful number, since it uses less digits than its factorization.

1478264868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9161 (or 9156 counting only the distinct ones).

The product of its digits is 4128768, while the sum is 54.

The square root of 1478264868 is about 38448.2102054179. The cubic root of 1478264868 is about 1139.1583168575.

The spelling of 1478264868 in words is "one billion, four hundred seventy-eight million, two hundred sixty-four thousand, eight hundred sixty-eight".