20575104 has 64 divisors (see below), whose sum is σ = 59633280. Its totient is φ = 6233600.

The previous prime is 20575073. The next prime is 20575111. The reversal of 20575104 is 40157502.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×20575104² = 846669809221632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1789 + ... + 6659.

It is an arithmetic number, because the mean of its divisors is an integer number (931770).

Almost surely, 2^20575104 is an apocalyptic number.

20575104 is a gapful number since it is divisible by the number (24) 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 20575104, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29816640).

20575104 is an abundant number, since it is smaller than the sum of its proper divisors (39058176).

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

20575104 is a wasteful number, since it uses less digits than its factorization.

20575104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4899 (or 4887 counting only the distinct ones).

The product of its (nonzero) digits is 1400, while the sum is 24.

The square root of 20575104 is about 4535.9788359295. The cubic root of 20575104 is about 274.0190016481.

The spelling of 20575104 in words is "twenty million, five hundred seventy-five thousand, one hundred four".