30772642 has 8 divisors (see below), whose sum is σ = 46185516. Its totient is φ = 15377472.

The previous prime is 30772627. The next prime is 30772663. The reversal of 30772642 is 24627703.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 29257281 + 1515361 = 5409^2 + 1231^2 .

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

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, 1518 + ... + 7990.

Almost surely, 2^30772642 is an apocalyptic number.

30772642 is a deficient number, since it is larger than the sum of its proper divisors (15412874).

30772642 is a wasteful number, since it uses less digits than its factorization.

30772642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8852.

The product of its (nonzero) digits is 14112, while the sum is 31.

The square root of 30772642 is about 5547.3094379167. The cubic root of 30772642 is about 313.3682037043.

The spelling of 30772642 in words is "thirty million, seven hundred seventy-two thousand, six hundred forty-two".