68142426 has 32 divisors (see below), whose sum is σ = 157422528. Its totient is φ = 19434240.

The previous prime is 68142413. The next prime is 68142439. The reversal of 68142426 is 62424186.

It is an interprime number because it is at equal distance from previous prime (68142413) and next prime (68142439).

It is a Harshad number since it is a multiple of its sum of digits (33).

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 15 ways as a sum of consecutive naturals, for example, 29245 + ... + 31488.

It is an arithmetic number, because the mean of its divisors is an integer number (4919454).

Almost surely, 2^68142426 is an apocalyptic number.

68142426 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

68142426 is an abundant number, since it is smaller than the sum of its proper divisors (89280102).

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

68142426 is a wasteful number, since it uses less digits than its factorization.

68142426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60766.

The product of its digits is 18432, while the sum is 33.

The square root of 68142426 is about 8254.8425787534. The cubic root of 68142426 is about 408.4502790218.

The spelling of 68142426 in words is "sixty-eight million, one hundred forty-two thousand, four hundred twenty-six".