20532642 has 16 divisors (see below), whose sum is σ = 44224320. Its totient is φ = 6317712.

The previous prime is 20532641. The next prime is 20532683. The reversal of 20532642 is 24623502.

It is not an unprimeable number, because it can be changed into a prime (20532641) 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, 131542 + ... + 131697.

It is an arithmetic number, because the mean of its divisors is an integer number (2764020).

Almost surely, 2^20532642 is an apocalyptic number.

20532642 is an abundant number, since it is smaller than the sum of its proper divisors (23691678).

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

20532642 is a wasteful number, since it uses less digits than its factorization.

20532642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263257.

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 20532642 is about 4531.2958411474. The cubic root of 20532642 is about 273.8303690132.

The spelling of 20532642 in words is "twenty million, five hundred thirty-two thousand, six hundred forty-two".