1478985456 has 80 divisors (see below), whose sum is σ = 4215042720. Its totient is φ = 443965440.

The previous prime is 1478985449. The next prime is 1478985457. The reversal of 1478985456 is 6545898741.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 1478985396 and 1478985405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1478985457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3321 + ... + 54488.

It is an arithmetic number, because the mean of its divisors is an integer number (52688034).

Almost surely, 2^1478985456 is an apocalyptic number.

1478985456 is a gapful number since it is divisible by the number (16) 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 1478985456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2107521360).

1478985456 is an abundant number, since it is smaller than the sum of its proper divisors (2736057264).

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

1478985456 is a wasteful number, since it uses less digits than its factorization.

1478985456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57874 (or 57868 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 57.

The square root of 1478985456 is about 38457.5799550622. The cubic root of 1478985456 is about 1139.3433830318.

The spelling of 1478985456 in words is "one billion, four hundred seventy-eight million, nine hundred eighty-five thousand, four hundred fifty-six".