42071205 has 16 divisors (see below), whose sum is σ = 73433664. Its totient is φ = 20398080.

The previous prime is 42071201. The next prime is 42071231. The reversal of 42071205 is 50217024.

It is not a de Polignac number, because 42071205 - 2² = 42071201 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42071201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127324 + ... + 127653.

It is an arithmetic number, because the mean of its divisors is an integer number (4589604).

Almost surely, 2^42071205 is an apocalyptic number.

It is an amenable number.

42071205 is a deficient number, since it is larger than the sum of its proper divisors (31362459).

42071205 is a wasteful number, since it uses less digits than its factorization.

42071205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254996.

The product of its (nonzero) digits is 560, while the sum is 21.

The square root of 42071205 is about 6486.2319569994. The cubic root of 42071205 is about 347.7989904696.

Adding to 42071205 its reverse (50217024), we get a palindrome (92288229).

The spelling of 42071205 in words is "forty-two million, seventy-one thousand, two hundred five".