20022604 has 24 divisors (see below), whose sum is σ = 41787648. Its totient is φ = 8207760.

The previous prime is 20022593. The next prime is 20022619. The reversal of 20022604 is 40622002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14902 + ... + 16189.

It is an arithmetic number, because the mean of its divisors is an integer number (1741152).

Almost surely, 2^20022604 is an apocalyptic number.

It is an amenable number.

20022604 is an abundant number, since it is smaller than the sum of its proper divisors (21765044).

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

20022604 is a wasteful number, since it uses less digits than its factorization.

20022604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31125 (or 31123 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 20022604 is about 4474.6624453695. The cubic root of 20022604 is about 271.5439843182.

Adding to 20022604 its reverse (40622002), we get a palindrome (60644606).

The spelling of 20022604 in words is "twenty million, twenty-two thousand, six hundred four".