68620242 has 32 divisors (see below), whose sum is σ = 140169600. Its totient is φ = 22389120.

The previous prime is 68620207. The next prime is 68620249. The reversal of 68620242 is 24202686.

It is a super-2 number, since 2×68620242² = 9417475224277128, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68620249) by changing a digit.

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, 114259 + ... + 114857.

It is an arithmetic number, because the mean of its divisors is an integer number (4380300).

Almost surely, 2^68620242 is an apocalyptic number.

68620242 is an abundant number, since it is smaller than the sum of its proper divisors (71549358).

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

68620242 is a wasteful number, since it uses less digits than its factorization.

68620242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 978.

The product of its (nonzero) digits is 9216, while the sum is 30.

The square root of 68620242 is about 8283.7335785261. The cubic root of 68620242 is about 409.4027433134.

The spelling of 68620242 in words is "sixty-eight million, six hundred twenty thousand, two hundred forty-two".