143400444 has 48 divisors (see below), whose sum is σ = 371226240. Its totient is φ = 42715840.

The previous prime is 143400443. The next prime is 143400461. The reversal of 143400444 is 444004341.

143400444 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143400443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1419 + ... + 16994.

It is an arithmetic number, because the mean of its divisors is an integer number (7733880).

Almost surely, 2^143400444 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 143400444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185613120).

143400444 is an abundant number, since it is smaller than the sum of its proper divisors (227825796).

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

143400444 is a wasteful number, since it uses less digits than its factorization.

143400444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18490 (or 18488 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

The square root of 143400444 is about 11974.9924425863. The cubic root of 143400444 is about 523.4198218947.

Adding to 143400444 its reverse (444004341), we get a palindrome (587404785).

The spelling of 143400444 in words is "one hundred forty-three million, four hundred thousand, four hundred forty-four".