30512034 has 48 divisors (see below), whose sum is σ = 76257792. Its totient is φ = 8636544.

The previous prime is 30512033. The next prime is 30512039. The reversal of 30512034 is 43021503.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 30511998 and 30512016.

It is not an unprimeable number, because it can be changed into a prime (30512033) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13167 + ... + 15309.

It is an arithmetic number, because the mean of its divisors is an integer number (1588704).

Almost surely, 2^30512034 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30512034, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38128896).

30512034 is an abundant number, since it is smaller than the sum of its proper divisors (45745758).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30512034 is a wasteful number, since it uses less digits than its factorization.

30512034 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2271 (or 2268 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 30512034 is about 5523.7699083144. The cubic root of 30512034 is about 312.4810749072.

Adding to 30512034 its reverse (43021503), we get a palindrome (73533537).

The spelling of 30512034 in words is "thirty million, five hundred twelve thousand, thirty-four".