142243464 has 32 divisors (see below), whose sum is σ = 387937440. Its totient is φ = 43104000.

The previous prime is 142243433. The next prime is 142243483. The reversal of 142243464 is 464342241.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 269137 + ... + 269664.

It is an arithmetic number, because the mean of its divisors is an integer number (12123045).

Almost surely, 2^142243464 is an apocalyptic number.

It is an amenable number.

142243464 is an abundant number, since it is smaller than the sum of its proper divisors (245693976).

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

142243464 is a wasteful number, since it uses less digits than its factorization.

142243464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538821 (or 538817 counting only the distinct ones).

The product of its digits is 18432, while the sum is 30.

The square root of 142243464 is about 11926.5864353553. The cubic root of 142243464 is about 522.0083379711.

The spelling of 142243464 in words is "one hundred forty-two million, two hundred forty-three thousand, four hundred sixty-four".