30742742 has 8 divisors (see below), whose sum is σ = 46157256. Its totient is φ = 15356992.

The previous prime is 30742727. The next prime is 30742759. The reversal of 30742742 is 24724703.

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

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, 4283 + ... + 8934.

It is an arithmetic number, because the mean of its divisors is an integer number (5769657).

Almost surely, 2^30742742 is an apocalyptic number.

30742742 is a deficient number, since it is larger than the sum of its proper divisors (15414514).

30742742 is a wasteful number, since it uses less digits than its factorization.

30742742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14382.

The product of its (nonzero) digits is 9408, while the sum is 29.

The square root of 30742742 is about 5544.6137827625. The cubic root of 30742742 is about 313.2666768828.

The spelling of 30742742 in words is "thirty million, seven hundred forty-two thousand, seven hundred forty-two".