63444450 has 48 divisors (see below), whose sum is σ = 158114880. Its totient is φ = 16835520.

The previous prime is 63444443. The next prime is 63444467. The reversal of 63444450 is 5444436.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33427 + ... + 35273.

It is an arithmetic number, because the mean of its divisors is an integer number (3294060).

Almost surely, 2^63444450 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63444450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79057440).

63444450 is an abundant number, since it is smaller than the sum of its proper divisors (94670430).

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

63444450 is a wasteful number, since it uses less digits than its factorization.

63444450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2091 (or 2086 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 63444450 is about 7965.2024456382. The cubic root of 63444450 is about 398.8392390097.

Adding to 63444450 its sum of digits (30), we get a triangular number (63444480 = T₁₁₂₆₄).

Adding to 63444450 its reverse (5444436), we get a palindrome (68888886).

The spelling of 63444450 in words is "sixty-three million, four hundred forty-four thousand, four hundred fifty".