68143432 has 16 divisors (see below), whose sum is σ = 146021760. Its totient is φ = 29204304.

The previous prime is 68143403. The next prime is 68143447. The reversal of 68143432 is 23434186.

It is a junction number, because it is equal to n+sod(n) for n = 68143394 and 68143403.

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 3 ways as a sum of consecutive naturals, for example, 608368 + ... + 608479.

It is an arithmetic number, because the mean of its divisors is an integer number (9126360).

Almost surely, 2^68143432 is an apocalyptic number.

It is an amenable number.

68143432 is an abundant number, since it is smaller than the sum of its proper divisors (77878328).

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

68143432 is a wasteful number, since it uses less digits than its factorization.

68143432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1216860 (or 1216856 counting only the distinct ones).

The product of its digits is 13824, while the sum is 31.

The square root of 68143432 is about 8254.9035124585. The cubic root of 68143432 is about 408.4522890224.

The spelling of 68143432 in words is "sixty-eight million, one hundred forty-three thousand, four hundred thirty-two".