4242081 has 4 divisors (see below), whose sum is σ = 5656112. Its totient is φ = 2828052.

The previous prime is 4242059. The next prime is 4242109. The reversal of 4242081 is 1802424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 4242081 - 2¹⁰ = 4241057 is a prime.

It is a super-2 number, since 2×4242081² = 35990502421122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4242031) 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, 707011 + ... + 707016.

It is an arithmetic number, because the mean of its divisors is an integer number (1414028).

Almost surely, 2^4242081 is an apocalyptic number.

It is an amenable number.

4242081 is a deficient number, since it is larger than the sum of its proper divisors (1414031).

4242081 is a wasteful number, since it uses less digits than its factorization.

4242081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414030.

The product of its (nonzero) digits is 512, while the sum is 21.

The square root of 4242081 is about 2059.6312776805. The cubic root of 4242081 is about 161.8799216861.

The spelling of 4242081 in words is "four million, two hundred forty-two thousand, eighty-one".