143668464 has 20 divisors (see below), whose sum is σ = 371143656. Its totient is φ = 47889472.

The previous prime is 143668451. The next prime is 143668471. The reversal of 143668464 is 464866341.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496499 + ... + 1496594.

Almost surely, 2^143668464 is an apocalyptic number.

It is an amenable number.

143668464 is an abundant number, since it is smaller than the sum of its proper divisors (227475192).

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

143668464 is a wasteful number, since it uses less digits than its factorization.

143668464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2993104 (or 2993098 counting only the distinct ones).

The product of its digits is 331776, while the sum is 42.

The square root of 143668464 is about 11986.1780397256. The cubic root of 143668464 is about 523.7457150535.

The spelling of 143668464 in words is "one hundred forty-three million, six hundred sixty-eight thousand, four hundred sixty-four".