724616490 has 64 divisors (see below), whose sum is σ = 1971446400. Its totient is φ = 168977664.

The previous prime is 724616479. The next prime is 724616491. The reversal of 724616490 is 94616427.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (724616491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41485 + ... + 56304.

It is an arithmetic number, because the mean of its divisors is an integer number (30803850).

Almost surely, 2^724616490 is an apocalyptic number.

724616490 is an abundant number, since it is smaller than the sum of its proper divisors (1246829910).

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

724616490 is a wasteful number, since it uses less digits than its factorization.

724616490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97831.

The product of its (nonzero) digits is 72576, while the sum is 39.

The square root of 724616490 is about 26918.7014917139. The cubic root of 724616490 is about 898.1924586213.

The spelling of 724616490 in words is "seven hundred twenty-four million, six hundred sixteen thousand, four hundred ninety".