20248620 has 96 divisors (see below), whose sum is σ = 66597888. Its totient is φ = 4499712.

The previous prime is 20248607. The next prime is 20248637. The reversal of 20248620 is 2684202.

It is a super-2 number, since 2×20248620² = 820013223808800, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14889 + ... + 16191.

It is an arithmetic number, because the mean of its divisors is an integer number (693728).

Almost surely, 2^20248620 is an apocalyptic number.

20248620 is a gapful number since it is divisible by the number (20) 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 20248620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33298944).

20248620 is an abundant number, since it is smaller than the sum of its proper divisors (46349268).

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

20248620 is a wasteful number, since it uses less digits than its factorization.

20248620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1359 (or 1357 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

The square root of 20248620 is about 4499.8466640542. The cubic root of 20248620 is about 272.5618971140.

The spelling of 20248620 in words is "twenty million, two hundred forty-eight thousand, six hundred twenty".