68571942 has 16 divisors (see below), whose sum is σ = 139076352. Its totient is φ = 22535240.

The previous prime is 68571929. The next prime is 68571953. The reversal of 68571942 is 24917586.

It is a super-2 number, since 2×68571942² = 9404222459302728, which contains 22 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 68571894 and 68571903.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 80058 + ... + 80909.

It is an arithmetic number, because the mean of its divisors is an integer number (8692272).

Almost surely, 2^68571942 is an apocalyptic number.

68571942 is an abundant number, since it is smaller than the sum of its proper divisors (70504410).

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

68571942 is a wasteful number, since it uses less digits than its factorization.

68571942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161043.

The product of its digits is 120960, while the sum is 42.

The square root of 68571942 is about 8280.8177132455. The cubic root of 68571942 is about 409.3066647936.

It can be divided in two parts, 685 and 71942, that added together give a palindrome (72627).

The spelling of 68571942 in words is "sixty-eight million, five hundred seventy-one thousand, nine hundred forty-two".