30845742 has 8 divisors (see below), whose sum is σ = 61691496. Its totient is φ = 10281912.

The previous prime is 30845707. The next prime is 30845743. The reversal of 30845742 is 24754803.

It is a sphenic number, since it is the product of 3 distinct primes.

30845742 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30845743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2570473 + ... + 2570484.

It is an arithmetic number, because the mean of its divisors is an integer number (7711437).

Almost surely, 2^30845742 is an apocalyptic number.

30845742 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

30845742 is a wasteful number, since it uses less digits than its factorization.

30845742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5140962.

The product of its (nonzero) digits is 26880, while the sum is 33.

The square root of 30845742 is about 5553.8943094013. The cubic root of 30845742 is about 313.6161414775.

The spelling of 30845742 in words is "thirty million, eight hundred forty-five thousand, seven hundred forty-two".