30504402 has 12 divisors (see below), whose sum is σ = 66092910. Its totient is φ = 10168128.

The previous prime is 30504401. The next prime is 30504407. The reversal of 30504402 is 20440503.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29909961 + 594441 = 5469^2 + 771^2 .

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: 1694689 = 30504402 / (3 + 0 + 5 + 0 + 4 + 4 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (30504401) 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, 847327 + ... + 847362.

Almost surely, 2^30504402 is an apocalyptic number.

30504402 is an abundant number, since it is smaller than the sum of its proper divisors (35588508).

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

30504402 is a wasteful number, since it uses less digits than its factorization.

30504402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1694697 (or 1694694 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 30504402 is about 5523.0790325687. The cubic root of 30504402 is about 312.4550190191.

Adding to 30504402 its reverse (20440503), we get a palindrome (50944905).

The spelling of 30504402 in words is "thirty million, five hundred four thousand, four hundred two".