4168642 has 8 divisors (see below), whose sum is σ = 6422076. Its totient is φ = 2027952.

The previous prime is 4168627. The next prime is 4168649. The reversal of 4168642 is 2468614.

It can be written as a sum of positive squares in 2 ways, for example, as 4124961 + 43681 = 2031^2 + 209^2 .

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

It is a super-2 number, since 2×4168642² = 34755152248328, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (4168649) 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, 28093 + ... + 28240.

Almost surely, 2^4168642 is an apocalyptic number.

4168642 is a deficient number, since it is larger than the sum of its proper divisors (2253434).

4168642 is a wasteful number, since it uses less digits than its factorization.

4168642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56372.

The product of its digits is 9216, while the sum is 31.

The square root of 4168642 is about 2041.7252508602. The cubic root of 4168642 is about 160.9403222618.

The spelling of 4168642 in words is "four million, one hundred sixty-eight thousand, six hundred forty-two".