20527144 has 32 divisors (see below), whose sum is σ = 44200800. Its totient is φ = 8838720.

The previous prime is 20527127. The next prime is 20527147. The reversal of 20527144 is 44172502.

It is not an unprimeable number, because it can be changed into a prime (20527147) 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, 4467 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (1381275).

Almost surely, 2^20527144 is an apocalyptic number.

It is an amenable number.

20527144 is an abundant number, since it is smaller than the sum of its proper divisors (23673656).

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

20527144 is a wasteful number, since it uses less digits than its factorization.

20527144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12313 (or 12309 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 20527144 is about 4530.6891308056. The cubic root of 20527144 is about 273.8059257589.

Adding to 20527144 its reverse (44172502), we get a palindrome (64699646).

The spelling of 20527144 in words is "twenty million, five hundred twenty-seven thousand, one hundred forty-four".