20010442452 has 288 divisors, whose sum is σ = 64321216512. Its totient is φ = 4675968000.

The previous prime is 20010442429. The next prime is 20010442471. The reversal of 20010442452 is 25424401002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 20191677 + ... + 20192667.

Almost surely, 2^20010442452 is an apocalyptic number.

20010442452 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 20010442452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32160608256).

20010442452 is an abundant number, since it is smaller than the sum of its proper divisors (44310774060).

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

20010442452 is a wasteful number, since it uses less digits than its factorization.

20010442452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1111 (or 1068 counting only the distinct ones).

The product of its (nonzero) digits is 2560, while the sum is 24.

Adding to 20010442452 its reverse (25424401002), we get a palindrome (45434843454).

It can be divided in two parts, 200104 and 42452, that added together give a triangular number (242556 = T₆₉₆).

The spelling of 20010442452 in words is "twenty billion, ten million, four hundred forty-two thousand, four hundred fifty-two".