20454648 has 32 divisors (see below), whose sum is σ = 51518160. Its totient is φ = 6767360.

The previous prime is 20454647. The next prime is 20454649. The reversal of 20454648 is 84645402.

It is an interprime number because it is at equal distance from previous prime (20454647) and next prime (20454649).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454641) 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, 178 + ... + 6398.

Almost surely, 2^20454648 is an apocalyptic number.

It is an amenable number.

20454648 is an abundant number, since it is smaller than the sum of its proper divisors (31063512).

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

20454648 is a wasteful number, since it uses less digits than its factorization.

20454648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6367 (or 6363 counting only the distinct ones).

The product of its (nonzero) digits is 30720, while the sum is 33.

The square root of 20454648 is about 4522.6815054788. The cubic root of 20454648 is about 273.4832108157.

The spelling of 20454648 in words is "twenty million, four hundred fifty-four thousand, six hundred forty-eight".