724855490 has 8 divisors (see below), whose sum is σ = 1304739900. Its totient is φ = 289942192.

The previous prime is 724855477. The next prime is 724855499. The reversal of 724855490 is 94558427.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 699443809 + 25411681 = 26447^2 + 5041^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (724855499) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36242765 + ... + 36242784.

Almost surely, 2^724855490 is an apocalyptic number.

724855490 is a deficient number, since it is larger than the sum of its proper divisors (579884410).

724855490 is a wasteful number, since it uses less digits than its factorization.

724855490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72485556.

The product of its (nonzero) digits is 403200, while the sum is 44.

The square root of 724855490 is about 26923.1404186064. The cubic root of 724855490 is about 898.2911979331.

The spelling of 724855490 in words is "seven hundred twenty-four million, eight hundred fifty-five thousand, four hundred ninety".