724781952 has 64 divisors (see below), whose sum is σ = 2139123600. Its totient is φ = 241592832.

The previous prime is 724781951. The next prime is 724781977. The reversal of 724781952 is 259187427.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (64).

It is a junction number, because it is equal to n+sod(n) for n = 724781898 and 724781907.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724781951) 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 7 ways as a sum of consecutive naturals, for example, 101403 + ... + 108314.

Almost surely, 2^724781952 is an apocalyptic number.

724781952 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

724781952 is an abundant number, since it is smaller than the sum of its proper divisors (1414341648).

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

724781952 is a wasteful number, since it uses less digits than its factorization.

724781952 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209740 (or 209722 counting only the distinct ones).

The product of its digits is 282240, while the sum is 45.

The square root of 724781952 is about 26921.7746814730. The cubic root of 724781952 is about 898.2608191091.

The spelling of 724781952 in words is "seven hundred twenty-four million, seven hundred eighty-one thousand, nine hundred fifty-two".