30004146 has 12 divisors (see below), whose sum is σ = 65009022. Its totient is φ = 10001376.

The previous prime is 30004057. The next prime is 30004147. The reversal of 30004146 is 64140003.

It can be written as a sum of positive squares in only one way, i.e., 27973521 + 2030625 = 5289^2 + 1425^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 1666897 = 30004146 / (3 + 0 + 0 + 0 + 4 + 1 + 4 + 6).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30004147) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 833431 + ... + 833466.

Almost surely, 2^30004146 is an apocalyptic number.

30004146 is an abundant number, since it is smaller than the sum of its proper divisors (35004876).

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

30004146 is a wasteful number, since it uses less digits than its factorization.

30004146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1666905 (or 1666902 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 30004146 is about 5477.6040382634. The cubic root of 30004146 is about 310.7375639204.

Adding to 30004146 its reverse (64140003), we get a palindrome (94144149).

The spelling of 30004146 in words is "thirty million, four thousand, one hundred forty-six".