42066674 has 8 divisors (see below), whose sum is σ = 67953900. Its totient is φ = 19415376.

The previous prime is 42066671. The next prime is 42066677. The reversal of 42066674 is 47666024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42066671) and next prime (42066677).

It can be written as a sum of positive squares in 2 ways, for example, as 42055225 + 11449 = 6485^2 + 107^2 .

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

It is a super-2 number, since 2×42066674² = 3539210122844552, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (42066671) 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, 808949 + ... + 809000.

Almost surely, 2^42066674 is an apocalyptic number.

42066674 is a deficient number, since it is larger than the sum of its proper divisors (25887226).

42066674 is a wasteful number, since it uses less digits than its factorization.

42066674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617964.

The product of its (nonzero) digits is 48384, while the sum is 35.

The square root of 42066674 is about 6485.8826693057. The cubic root of 42066674 is about 347.7865042271.

The spelling of 42066674 in words is "forty-two million, sixty-six thousand, six hundred seventy-four".