723481428 has 12 divisors (see below), whose sum is σ = 1688123360. Its totient is φ = 241160472.

The previous prime is 723481417. The next prime is 723481439. The reversal of 723481428 is 824184327.

It is an interprime number because it is at equal distance from previous prime (723481417) and next prime (723481439).

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30145048 + ... + 30145071.

Almost surely, 2^723481428 is an apocalyptic number.

It is an amenable number.

723481428 is an abundant number, since it is smaller than the sum of its proper divisors (964641932).

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

723481428 is a wasteful number, since it uses less digits than its factorization.

723481428 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60290126 (or 60290124 counting only the distinct ones).

The product of its digits is 86016, while the sum is 39.

The square root of 723481428 is about 26897.6100797078. The cubic root of 723481428 is about 897.7232279161.

The spelling of 723481428 in words is "seven hundred twenty-three million, four hundred eighty-one thousand, four hundred twenty-eight".