30630442 has 8 divisors (see below), whose sum is σ = 46091556. Its totient is φ = 15266592.

The previous prime is 30630437. The next prime is 30630443. The reversal of 30630442 is 24403603.

It can be written as a sum of positive squares in 2 ways, for example, as 26224641 + 4405801 = 5121^2 + 2099^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30630443) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23523 + ... + 24790.

Almost surely, 2^30630442 is an apocalyptic number.

30630442 is a deficient number, since it is larger than the sum of its proper divisors (15461114).

30630442 is a wasteful number, since it uses less digits than its factorization.

30630442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48632.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 30630442 is about 5534.4775724543. The cubic root of 30630442 is about 312.8847680835.

The spelling of 30630442 in words is "thirty million, six hundred thirty thousand, four hundred forty-two".