30286742 has 8 divisors (see below), whose sum is σ = 45592632. Its totient is φ = 15089200.

The previous prime is 30286709. The next prime is 30286771. The reversal of 30286742 is 24768203.

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

It is a junction number, because it is equal to n+sod(n) for n = 30286699 and 30286708.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26384 + ... + 27507.

It is an arithmetic number, because the mean of its divisors is an integer number (5699079).

Almost surely, 2^30286742 is an apocalyptic number.

30286742 is a deficient number, since it is larger than the sum of its proper divisors (15305890).

30286742 is a wasteful number, since it uses less digits than its factorization.

30286742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54174.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 30286742 is about 5503.3391681778. The cubic root of 30286742 is about 311.7100843488.

The spelling of 30286742 in words is "thirty million, two hundred eighty-six thousand, seven hundred forty-two".