724780650 has 192 divisors, whose sum is σ = 2103436800. Its totient is φ = 163296000.

The previous prime is 724780627. The next prime is 724780697. The reversal of 724780650 is 56087427.

724780650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×724780650² = 1050613981228845000, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 724780599 and 724780608.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1912161 + ... + 1912539.

It is an arithmetic number, because the mean of its divisors is an integer number (10955400).

Almost surely, 2^724780650 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724780650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1051718400).

724780650 is an abundant number, since it is smaller than the sum of its proper divisors (1378656150).

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

724780650 is a wasteful number, since it uses less digits than its factorization.

724780650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 485 (or 480 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 724780650 is about 26921.7505002925. The cubic root of 724780650 is about 898.2602812295.

The spelling of 724780650 in words is "seven hundred twenty-four million, seven hundred eighty thousand, six hundred fifty".