20262132 has 72 divisors (see below), whose sum is σ = 58836960. Its totient is φ = 5814720.

The previous prime is 20262107. The next prime is 20262133. The reversal of 20262132 is 23126202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20262133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6178 + ... + 8870.

It is an arithmetic number, because the mean of its divisors is an integer number (817180).

Almost surely, 2^20262132 is an apocalyptic number.

20262132 is a gapful number since it is divisible by the number (22) 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 20262132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29418480).

20262132 is an abundant number, since it is smaller than the sum of its proper divisors (38574828).

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

20262132 is a wasteful number, since it uses less digits than its factorization.

20262132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2733 (or 2728 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 20262132 is about 4501.3477981600. The cubic root of 20262132 is about 272.6225109149.

Adding to 20262132 its reverse (23126202), we get a palindrome (43388334).

The spelling of 20262132 in words is "twenty million, two hundred sixty-two thousand, one hundred thirty-two".