30638084 has 6 divisors (see below), whose sum is σ = 53616654. Its totient is φ = 15319040.

The previous prime is 30638077. The next prime is 30638087. The reversal of 30638084 is 48083603.

It can be written as a sum of positive squares in only one way, i.e., 29593600 + 1044484 = 5440^2 + 1022^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 30638084.

It is not an unprimeable number, because it can be changed into a prime (30638087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3829757 + ... + 3829764.

It is an arithmetic number, because the mean of its divisors is an integer number (8936109).

Almost surely, 2^30638084 is an apocalyptic number.

It is an amenable number.

30638084 is a deficient number, since it is larger than the sum of its proper divisors (22978570).

30638084 is a wasteful number, since it uses less digits than its factorization.

30638084 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7659525 (or 7659523 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 30638084 is about 5535.1679287985. The cubic root of 30638084 is about 312.9107864976.

The spelling of 30638084 in words is "thirty million, six hundred thirty-eight thousand, eighty-four".