724736142 has 48 divisors (see below), whose sum is σ = 1701515088. Its totient is φ = 221616000.

The previous prime is 724736083. The next prime is 724736153. The reversal of 724736142 is 241637427.

It is a junction number, because it is equal to n+sod(n) for n = 724736097 and 724736106.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28642 + ... + 47642.

It is an arithmetic number, because the mean of its divisors is an integer number (35448231).

Almost surely, 2^724736142 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 724736142, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (850757544).

724736142 is an abundant number, since it is smaller than the sum of its proper divisors (976778946).

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

724736142 is a wasteful number, since it uses less digits than its factorization.

724736142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19185 (or 19182 counting only the distinct ones).

The product of its digits is 56448, while the sum is 36.

The square root of 724736142 is about 26920.9238697337. The cubic root of 724736142 is about 898.2418937873.

The spelling of 724736142 in words is "seven hundred twenty-four million, seven hundred thirty-six thousand, one hundred forty-two".