724942 has 12 divisors (see below), whose sum is σ = 1128816. Its totient is φ = 349160.

The previous prime is 724939. The next prime is 724949. The reversal of 724942 is 249427.

It is a self number, because there is not a number n which added to its sum of digits gives 724942.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (724949) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1467 + ... + 1897.

It is an arithmetic number, because the mean of its divisors is an integer number (94068).

2⁷²⁴⁹⁴² is an apocalyptic number.

724942 is a deficient number, since it is larger than the sum of its proper divisors (403874).

724942 is a wasteful number, since it uses less digits than its factorization.

724942 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491 (or 462 counting only the distinct ones).

The product of its digits is 4032, while the sum is 28.

The square root of 724942 is about 851.4352588424. The cubic root of 724942 is about 89.8326932909.

The spelling of 724942 in words is "seven hundred twenty-four thousand, nine hundred forty-two".