20030604 has 48 divisors (see below), whose sum is σ = 52187520. Its totient is φ = 5927040.

The previous prime is 20030599. The next prime is 20030627. The reversal of 20030604 is 40603002.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3912 + ... + 7440.

It is an arithmetic number, because the mean of its divisors is an integer number (1087240).

Almost surely, 2^20030604 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26093760).

20030604 is an abundant number, since it is smaller than the sum of its proper divisors (32156916).

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

20030604 is a wasteful number, since it uses less digits than its factorization.

20030604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3590 (or 3588 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 20030604 is about 4475.5562782742. The cubic root of 20030604 is about 271.5801444936.

Adding to 20030604 its reverse (40603002), we get a palindrome (60633606).

The spelling of 20030604 in words is "twenty million, thirty thousand, six hundred four".