143244450 has 120 divisors (see below), whose sum is σ = 402812388. Its totient is φ = 37739520.

The previous prime is 143244449. The next prime is 143244457. The reversal of 143244450 is 54442341.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 178929 + 143065521 = 423^2 + 11961^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143244457) by changing a digit.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 457494 + ... + 457806.

Almost surely, 2^143244450 is an apocalyptic number.

143244450 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 143244450, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (201406194).

143244450 is an abundant number, since it is smaller than the sum of its proper divisors (259567938).

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

143244450 is a wasteful number, since it uses less digits than its factorization.

143244450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 436 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 27.

The square root of 143244450 is about 11968.4773467639. The cubic root of 143244450 is about 523.2299573580.

Adding to 143244450 its reverse (54442341), we get a palindrome (197686791).

The spelling of 143244450 in words is "one hundred forty-three million, two hundred forty-four thousand, four hundred fifty".