305726742 has 36 divisors (see below), whose sum is σ = 703677156. Its totient is φ = 95912640.

The previous prime is 305726683. The next prime is 305726749. The reversal of 305726742 is 247627503.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 305726697 and 305726706.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (305726749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 24184 + ... + 34587.

Almost surely, 2^305726742 is an apocalyptic number.

305726742 is an abundant number, since it is smaller than the sum of its proper divisors (397950414).

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

305726742 is a wasteful number, since it uses less digits than its factorization.

305726742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58813 (or 58793 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 36.

The square root of 305726742 is about 17485.0433799862. The cubic root of 305726742 is about 673.6657627746.

The spelling of 305726742 in words is "three hundred five million, seven hundred twenty-six thousand, seven hundred forty-two".