30320004 has 48 divisors (see below), whose sum is σ = 83119680. Its totient is φ = 8480640.

The previous prime is 30319987. The next prime is 30320009. The reversal of 30320004 is 40002303.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30320009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7119 + ... + 10550.

It is an arithmetic number, because the mean of its divisors is an integer number (1731660).

Almost surely, 2^30320004 is an apocalyptic number.

It is an amenable number.

30320004 is an abundant number, since it is smaller than the sum of its proper divisors (52799676).

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

30320004 is a wasteful number, since it uses less digits than its factorization.

30320004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17700 (or 17698 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

The square root of 30320004 is about 5506.3603223908. The cubic root of 30320004 is about 311.8241530459.

Adding to 30320004 its reverse (40002303), we get a palindrome (70322307).

The spelling of 30320004 in words is "thirty million, three hundred twenty thousand, four".