1780472460 has 144 divisors (see below), whose sum is σ = 5501823264. Its totient is φ = 429871104.

The previous prime is 1780472401. The next prime is 1780472479. The reversal of 1780472460 is 642740871.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 535764 + ... + 539076.

It is an arithmetic number, because the mean of its divisors is an integer number (38207106).

Almost surely, 2^1780472460 is an apocalyptic number.

1780472460 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 1780472460, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2750911632).

1780472460 is an abundant number, since it is smaller than the sum of its proper divisors (3721350804).

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

1780472460 is a wasteful number, since it uses less digits than its factorization.

1780472460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3404 (or 3389 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The square root of 1780472460 is about 42195.6450359513. The cubic root of 1780472460 is about 1212.0254898842.

The spelling of 1780472460 in words is "one billion, seven hundred eighty million, four hundred seventy-two thousand, four hundred sixty".