42207005 has 12 divisors (see below), whose sum is σ = 53804820. Its totient is φ = 31778304.

The previous prime is 42206929. The next prime is 42207017. The reversal of 42207005 is 50070224.

It can be written as a sum of positive squares in 6 ways, for example, as 1387684 + 40819321 = 1178^2 + 6389^2 .

It is a de Polignac number, because none of the positive numbers 2^k-42207005 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13160 + ... + 16049.

It is an arithmetic number, because the mean of its divisors is an integer number (4483735).

Almost surely, 2^42207005 is an apocalyptic number.

It is an amenable number.

42207005 is a deficient number, since it is larger than the sum of its proper divisors (11597815).

42207005 is a wasteful number, since it uses less digits than its factorization.

42207005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29248 (or 29231 counting only the distinct ones).

The product of its (nonzero) digits is 560, while the sum is 20.

The square root of 42207005 is about 6496.6918504728. The cubic root of 42207005 is about 348.1728041454.

Adding to 42207005 its reverse (50070224), we get a palindrome (92277229).

The spelling of 42207005 in words is "forty-two million, two hundred seven thousand, five".