68442542 has 8 divisors (see below), whose sum is σ = 117330096. Its totient is φ = 29332512.

The previous prime is 68442533. The next prime is 68442551. The reversal of 68442542 is 24524486.

It is an interprime number because it is at equal distance from previous prime (68442533) and next prime (68442551).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2444363 + ... + 2444390.

It is an arithmetic number, because the mean of its divisors is an integer number (14666262).

Almost surely, 2^68442542 is an apocalyptic number.

68442542 is a deficient number, since it is larger than the sum of its proper divisors (48887554).

68442542 is a wasteful number, since it uses less digits than its factorization.

68442542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4888762.

The product of its digits is 61440, while the sum is 35.

The square root of 68442542 is about 8273.0007856883. Note that the first 3 decimals coincide. The cubic root of 68442542 is about 409.0490393392.

The spelling of 68442542 in words is "sixty-eight million, four hundred forty-two thousand, five hundred forty-two".