20604252 has 48 divisors (see below), whose sum is σ = 49335552. Its totient is φ = 6691200.

The previous prime is 20604247. The next prime is 20604277. The reversal of 20604252 is 25240602.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136377 + ... + 136527.

It is an arithmetic number, because the mean of its divisors is an integer number (1027824).

Almost surely, 2^20604252 is an apocalyptic number.

It is an amenable number.

20604252 is an abundant number, since it is smaller than the sum of its proper divisors (28731300).

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

20604252 is a wasteful number, since it uses less digits than its factorization.

20604252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 378 (or 376 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 21.

The square root of 20604252 is about 4539.1906767617. The cubic root of 20604252 is about 274.1483381696.

Adding to 20604252 its reverse (25240602), we get a palindrome (45844854).

The spelling of 20604252 in words is "twenty million, six hundred four thousand, two hundred fifty-two".