20248404 has 48 divisors (see below), whose sum is σ = 51856896. Its totient is φ = 6098400.

The previous prime is 20248381. The next prime is 20248427. The reversal of 20248404 is 40484202.

It is an interprime number because it is at equal distance from previous prime (20248381) and next prime (20248427).

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, 27489 + ... + 28215.

It is an arithmetic number, because the mean of its divisors is an integer number (1080352).

Almost surely, 2^20248404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20248404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25928448).

20248404 is an abundant number, since it is smaller than the sum of its proper divisors (31608492).

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

20248404 is a wasteful number, since it uses less digits than its factorization.

20248404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956 (or 954 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

The square root of 20248404 is about 4499.8226631724. The cubic root of 20248404 is about 272.5609279355.

The spelling of 20248404 in words is "twenty million, two hundred forty-eight thousand, four hundred four".