68217042 has 16 divisors (see below), whose sum is σ = 139008960. Its totient is φ = 22309872.

The previous prime is 68217029. The next prime is 68217043. The reversal of 68217042 is 24071286.

It is not an unprimeable number, because it can be changed into a prime (68217043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106942 + ... + 107577.

It is an arithmetic number, because the mean of its divisors is an integer number (8688060).

Almost surely, 2^68217042 is an apocalyptic number.

68217042 is an abundant number, since it is smaller than the sum of its proper divisors (70791918).

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

68217042 is a wasteful number, since it uses less digits than its factorization.

68217042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214577.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 68217042 is about 8259.3608711570. The cubic root of 68217042 is about 408.5993090778.

The spelling of 68217042 in words is "sixty-eight million, two hundred seventeen thousand, forty-two".