142943418 has 48 divisors (see below), whose sum is σ = 322672896. Its totient is φ = 45682560.

The previous prime is 142943399. The next prime is 142943431. The reversal of 142943418 is 814349241.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 61921 + ... + 64187.

It is an arithmetic number, because the mean of its divisors is an integer number (6722352).

Almost surely, 2^142943418 is an apocalyptic number.

142943418 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142943418, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161336448).

142943418 is an abundant number, since it is smaller than the sum of its proper divisors (179729478).

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

142943418 is a wasteful number, since it uses less digits than its factorization.

142943418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419 (or 2416 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 142943418 is about 11955.8946967594. The cubic root of 142943418 is about 522.8631731046.

The spelling of 142943418 in words is "one hundred forty-two million, nine hundred forty-three thousand, four hundred eighteen".