1782945480 has 64 divisors (see below), whose sum is σ = 5366370240. Its totient is φ = 473893632.

The previous prime is 1782945469. The next prime is 1782945511. The reversal of 1782945480 is 845492871.

It is a happy number.

1782945480 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12642 + ... + 61038.

It is an arithmetic number, because the mean of its divisors is an integer number (83849535).

Almost surely, 2^1782945480 is an apocalyptic number.

1782945480 is a gapful number since it is divisible by the number (10) 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 1782945480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2683185120).

1782945480 is an abundant number, since it is smaller than the sum of its proper divisors (3583424760).

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

1782945480 is a wasteful number, since it uses less digits than its factorization.

1782945480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48718 (or 48714 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 48.

The square root of 1782945480 is about 42224.9390763326. The cubic root of 1782945480 is about 1212.5863853144.

The spelling of 1782945480 in words is "one billion, seven hundred eighty-two million, nine hundred forty-five thousand, four hundred eighty".