460721780 has 48 divisors (see below), whose sum is σ = 1016843520. Its totient is φ = 175125888.

The previous prime is 460721741. The next prime is 460721843. The reversal of 460721780 is 87127064.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 460721780.

It is a congruent number.

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, 24581 + ... + 39059.

It is an arithmetic number, because the mean of its divisors is an integer number (21184240).

Almost surely, 2^460721780 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 460721780, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (508421760).

460721780 is an abundant number, since it is smaller than the sum of its proper divisors (556121740).

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

460721780 is a wasteful number, since it uses less digits than its factorization.

460721780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14568 (or 14566 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 460721780 is about 21464.4305771199. The cubic root of 460721780 is about 772.3478011722.

The spelling of 460721780 in words is "four hundred sixty million, seven hundred twenty-one thousand, seven hundred eighty".