20452488 has 64 divisors (see below), whose sum is σ = 59564160. Its totient is φ = 5730816.

The previous prime is 20452469. The next prime is 20452499. The reversal of 20452488 is 88425402.

It is a happy number.

It is a congruent number.

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, 7756 + ... + 10052.

It is an arithmetic number, because the mean of its divisors is an integer number (930690).

Almost surely, 2^20452488 is an apocalyptic number.

20452488 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20452488, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29782080).

20452488 is an abundant number, since it is smaller than the sum of its proper divisors (39111672).

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

20452488 is a wasteful number, since it uses less digits than its factorization.

20452488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2366 (or 2362 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 33.

The square root of 20452488 is about 4522.4427027880. The cubic root of 20452488 is about 273.4735839161.

The spelling of 20452488 in words is "twenty million, four hundred fifty-two thousand, four hundred eighty-eight".