30740942 has 4 divisors (see below), whose sum is σ = 46111416. Its totient is φ = 15370470.

The previous prime is 30740929. The next prime is 30740971. The reversal of 30740942 is 24904703.

It is a semiprime because it is the product of two 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 as a sum of consecutive naturals, namely, 7685234 + ... + 7685237.

It is an arithmetic number, because the mean of its divisors is an integer number (11527854).

Almost surely, 2^30740942 is an apocalyptic number.

30740942 is a deficient number, since it is larger than the sum of its proper divisors (15370474).

30740942 is a wasteful number, since it uses less digits than its factorization.

30740942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15370473.

The product of its (nonzero) digits is 6048, while the sum is 29.

The square root of 30740942 is about 5544.4514606947. The cubic root of 30740942 is about 313.2605627998.

The spelling of 30740942 in words is "thirty million, seven hundred forty thousand, nine hundred forty-two".