42826666 has 8 divisors (see below), whose sum is σ = 64423044. Its totient is φ = 21352320.

The previous prime is 42826633. The next prime is 42826681. The reversal of 42826666 is 66662824.

It can be written as a sum of positive squares in 2 ways, for example, as 40513225 + 2313441 = 6365^2 + 1521^2 .

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

42826666 is a modest number, since divided by 6666 gives 4282 as remainder.

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, 29625 + ... + 31036.

Almost surely, 2^42826666 is an apocalyptic number.

42826666 is a deficient number, since it is larger than the sum of its proper divisors (21596378).

42826666 is a wasteful number, since it uses less digits than its factorization.

42826666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61016.

The product of its digits is 165888, while the sum is 40.

The square root of 42826666 is about 6544.2085846953. The cubic root of 42826666 is about 349.8684294583.

The spelling of 42826666 in words is "forty-two million, eight hundred twenty-six thousand, six hundred sixty-six".