42095221 has 16 divisors (see below), whose sum is σ = 51277824. Its totient is φ = 33772464.

The previous prime is 42095201. The next prime is 42095257. The reversal of 42095221 is 12259024.

It is not a de Polignac number, because 42095221 - 2¹³ = 42087029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42095201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4786 + ... + 10348.

It is an arithmetic number, because the mean of its divisors is an integer number (3204864).

Almost surely, 2^42095221 is an apocalyptic number.

It is an amenable number.

42095221 is a deficient number, since it is larger than the sum of its proper divisors (9182603).

42095221 is a wasteful number, since it uses less digits than its factorization.

42095221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5640.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 42095221 is about 6488.0829988526. The cubic root of 42095221 is about 347.8651572749.

The spelling of 42095221 in words is "forty-two million, ninety-five thousand, two hundred twenty-one".