42768674 has 8 divisors (see below), whose sum is σ = 69087900. Its totient is φ = 19739376.

The previous prime is 42768673. The next prime is 42768679. The reversal of 42768674 is 47686724.

It can be written as a sum of positive squares in 2 ways, for example, as 32890225 + 9878449 = 5735^2 + 3143^2 .

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42768673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822449 + ... + 822500.

Almost surely, 2^42768674 is an apocalyptic number.

42768674 is a deficient number, since it is larger than the sum of its proper divisors (26319226).

42768674 is a wasteful number, since it uses less digits than its factorization.

42768674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1644964.

The product of its digits is 451584, while the sum is 44.

The square root of 42768674 is about 6539.7762958682. The cubic root of 42768674 is about 349.7104380567.

The spelling of 42768674 in words is "forty-two million, seven hundred sixty-eight thousand, six hundred seventy-four".