30427946 has 4 divisors (see below), whose sum is σ = 45641922. Its totient is φ = 15213972.

The previous prime is 30427927. The next prime is 30427981. The reversal of 30427946 is 64972403.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 26122321 + 4305625 = 5111^2 + 2075^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 7606985 + ... + 7606988.

Almost surely, 2^30427946 is an apocalyptic number.

30427946 is a deficient number, since it is larger than the sum of its proper divisors (15213976).

30427946 is a wasteful number, since it uses less digits than its factorization.

30427946 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15213975.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 30427946 is about 5516.1531885908. The cubic root of 30427946 is about 312.1937556641.

The spelling of 30427946 in words is "thirty million, four hundred twenty-seven thousand, nine hundred forty-six".