20452604528 has 40 divisors (see below), whose sum is σ = 42365333088. Its totient is φ = 9531297792.

The previous prime is 20452604527. The next prime is 20452604537. The reversal of 20452604528 is 82540625402.

It is a super-2 number, since 2×20452604528² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20452604491 and 20452604500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20452604527) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337001 + ... + 393032.

Almost surely, 2^20452604528 is an apocalyptic number.

It is an amenable number.

20452604528 is an abundant number, since it is smaller than the sum of its proper divisors (21912728560).

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

20452604528 is a wasteful number, since it uses less digits than its factorization.

20452604528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 730161 (or 730155 counting only the distinct ones).

The product of its (nonzero) digits is 153600, while the sum is 38.

The spelling of 20452604528 in words is "twenty billion, four hundred fifty-two million, six hundred four thousand, five hundred twenty-eight".