20140576 has 48 divisors (see below), whose sum is σ = 41610240. Its totient is φ = 9584640.

The previous prime is 20140573. The next prime is 20140609. The reversal of 20140576 is 67504102.

It is a super-2 number, since 2×20140576² = 811285603223552, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20140576.

It is not an unprimeable number, because it can be changed into a prime (20140573) 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, 78240 + ... + 78496.

It is an arithmetic number, because the mean of its divisors is an integer number (866880).

Almost surely, 2^20140576 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 20140576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20805120).

20140576 is an abundant number, since it is smaller than the sum of its proper divisors (21469664).

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

20140576 is a wasteful number, since it uses less digits than its factorization.

20140576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 369 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 20140576 is about 4487.8253085431. The cubic root of 20140576 is about 272.0762473670.

Adding to 20140576 its reverse (67504102), we get a palindrome (87644678).

The spelling of 20140576 in words is "twenty million, one hundred forty thousand, five hundred seventy-six".