143294464 has 32 divisors (see below), whose sum is σ = 286650090. Its totient is φ = 71630848.

The previous prime is 143294453. The next prime is 143294477. The reversal of 143294464 is 464492341.

It can be written as a sum of positive squares in only one way, i.e., 118374400 + 24920064 = 10880^2 + 4992^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30582 + ... + 34954.

Almost surely, 2^143294464 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 143294464, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143325045).

143294464 is an abundant number, since it is smaller than the sum of its proper divisors (143355626).

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

143294464 is an frugal number, since it uses more digits than its factorization.

143294464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4403 (or 4375 counting only the distinct ones).

The product of its digits is 82944, while the sum is 37.

The square root of 143294464 is about 11970.5665697159. The cubic root of 143294464 is about 523.2908457625.

The spelling of 143294464 in words is "one hundred forty-three million, two hundred ninety-four thousand, four hundred sixty-four".