20122452 has 96 divisors (see below), whose sum is σ = 61107200. Its totient is φ = 5606496.

The previous prime is 20122429. The next prime is 20122469. The reversal of 20122452 is 25422102.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 32199 + ... + 32817.

Almost surely, 2^20122452 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 20122452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30553600).

20122452 is an abundant number, since it is smaller than the sum of its proper divisors (40984748).

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

20122452 is a wasteful number, since it uses less digits than its factorization.

20122452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 682 (or 674 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 20122452 is about 4485.8056132650. The cubic root of 20122452 is about 271.9946113408.

Adding to 20122452 its reverse (25422102), we get a palindrome (45544554).

The spelling of 20122452 in words is "twenty million, one hundred twenty-two thousand, four hundred fifty-two".