1721601460 has 24 divisors (see below), whose sum is σ = 3617339040. Its totient is φ = 688264224.

The previous prime is 1721601437. The next prime is 1721601473. The reversal of 1721601460 is 641061271.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 15571 + ... + 60709.

It is an arithmetic number, because the mean of its divisors is an integer number (150722460).

Almost surely, 2^1721601460 is an apocalyptic number.

1721601460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1721601460 is an abundant number, since it is smaller than the sum of its proper divisors (1895737580).

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

1721601460 is a wasteful number, since it uses less digits than its factorization.

1721601460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47055 (or 47053 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 1721601460 is about 41492.1855293259. The cubic root of 1721601460 is about 1198.5170245563.

The spelling of 1721601460 in words is "one billion, seven hundred twenty-one million, six hundred one thousand, four hundred sixty".