143866464 has 48 divisors (see below), whose sum is σ = 431601408. Its totient is φ = 41104512.

The previous prime is 143866447. The next prime is 143866469. The reversal of 143866464 is 464668341.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (143866469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106372 + ... + 107715.

It is an arithmetic number, because the mean of its divisors is an integer number (8991696).

Almost surely, 2^143866464 is an apocalyptic number.

143866464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

143866464 is an abundant number, since it is smaller than the sum of its proper divisors (287734944).

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

143866464 is a wasteful number, since it uses less digits than its factorization.

143866464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214107 (or 214099 counting only the distinct ones).

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

The square root of 143866464 is about 11994.4347094809. The cubic root of 143866464 is about 523.9862086769.

The spelling of 143866464 in words is "one hundred forty-three million, eight hundred sixty-six thousand, four hundred sixty-four".