721360460 has 24 divisors (see below), whose sum is σ = 1594587120. Its totient is φ = 273357504.

The previous prime is 721360447. The next prime is 721360463. The reversal of 721360460 is 64063127.

It is not an unprimeable number, because it can be changed into a prime (721360463) by changing a digit.

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, 948779 + ... + 949538.

It is an arithmetic number, because the mean of its divisors is an integer number (66441130).

Almost surely, 2^721360460 is an apocalyptic number.

It is an amenable number.

721360460 is an abundant number, since it is smaller than the sum of its proper divisors (873226660).

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

721360460 is a wasteful number, since it uses less digits than its factorization.

721360460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1898345 (or 1898343 counting only the distinct ones).

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 721360460 is about 26858.1544414355. The cubic root of 721360460 is about 896.8451100448.

The spelling of 721360460 in words is "seven hundred twenty-one million, three hundred sixty thousand, four hundred sixty".