42668996 has 12 divisors (see below), whose sum is σ = 74970000. Its totient is φ = 21249000.

The previous prime is 42668993. The next prime is 42669037. The reversal of 42668996 is 69986624.

42668996 = T₁₃₅ + T₁₃₆ + ... + T₆₃₆.

It is not an unprimeable number, because it can be changed into a prime (42668993) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 20246 + ... + 22253.

It is an arithmetic number, because the mean of its divisors is an integer number (6247500).

Almost surely, 2^42668996 is an apocalyptic number.

It is an amenable number.

42668996 is a deficient number, since it is larger than the sum of its proper divisors (32301004).

42668996 is a wasteful number, since it uses less digits than its factorization.

42668996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42754 (or 42752 counting only the distinct ones).

The product of its digits is 1119744, while the sum is 50.

The square root of 42668996 is about 6532.1509474292. The cubic root of 42668996 is about 349.4385447166.

The spelling of 42668996 in words is "forty-two million, six hundred sixty-eight thousand, nine hundred ninety-six".