724042336 has 48 divisors (see below), whose sum is σ = 1464356880. Its totient is φ = 352268800.

The previous prime is 724042331. The next prime is 724042349. The reversal of 724042336 is 633240427.

It is a junction number, because it is equal to n+sod(n) for n = 724042298 and 724042307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724042331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 188790 + ... + 192586.

It is an arithmetic number, because the mean of its divisors is an integer number (30507435).

Almost surely, 2^724042336 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724042336, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (732178440).

724042336 is an abundant number, since it is smaller than the sum of its proper divisors (740314544).

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

724042336 is a wasteful number, since it uses less digits than its factorization.

724042336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3967 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 31.

The square root of 724042336 is about 26908.0347851715. The cubic root of 724042336 is about 897.9551666349.

The spelling of 724042336 in words is "seven hundred twenty-four million, forty-two thousand, three hundred thirty-six".