143493444 has 96 divisors (see below), whose sum is σ = 385728000. Its totient is φ = 46679328.

The previous prime is 143493443. The next prime is 143493457. The reversal of 143493444 is 444394341.

It is a super-2 number, since 2×143493444² = 41180736941962272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 143493399 and 143493408.

It is not an unprimeable number, because it can be changed into a prime (143493443) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 410982 + ... + 411330.

It is an arithmetic number, because the mean of its divisors is an integer number (4018000).

Almost surely, 2^143493444 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 143493444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192864000).

143493444 is an abundant number, since it is smaller than the sum of its proper divisors (242234556).

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

143493444 is an equidigital number, since it uses as much as digits as its factorization.

143493444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421 (or 401 counting only the distinct ones).

The product of its digits is 82944, while the sum is 36.

The square root of 143493444 is about 11978.8749054325. The cubic root of 143493444 is about 523.5329492155.

The spelling of 143493444 in words is "one hundred forty-three million, four hundred ninety-three thousand, four hundred forty-four".