42951668 has 48 divisors (see below), whose sum is σ = 81312000. Its totient is φ = 19813248.

The previous prime is 42951659. The next prime is 42951679. The reversal of 42951668 is 86615924.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 393998 + ... + 394106.

It is an arithmetic number, because the mean of its divisors is an integer number (1694000).

Almost surely, 2^42951668 is an apocalyptic number.

It is an amenable number.

42951668 is a deficient number, since it is larger than the sum of its proper divisors (38360332).

42951668 is a wasteful number, since it uses less digits than its factorization.

42951668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 262 counting only the distinct ones).

The product of its digits is 103680, while the sum is 41.

The square root of 42951668 is about 6553.7522077051. The cubic root of 42951668 is about 350.2084961816.

The spelling of 42951668 in words is "forty-two million, nine hundred fifty-one thousand, six hundred sixty-eight".