42013005 has 16 divisors (see below), whose sum is σ = 67314240. Its totient is φ = 22375808.

The previous prime is 42012947. The next prime is 42013007. The reversal of 42013005 is 50031024.

It is a cyclic number.

It is not a de Polignac number, because 42013005 - 2¹³ = 42004813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42013007) 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, 12826 + ... + 15764.

It is an arithmetic number, because the mean of its divisors is an integer number (4207140).

Almost surely, 2^42013005 is an apocalyptic number.

It is an amenable number.

42013005 is a deficient number, since it is larger than the sum of its proper divisors (25301235).

42013005 is a wasteful number, since it uses less digits than its factorization.

42013005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3900.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 42013005 is about 6481.7439782824. The cubic root of 42013005 is about 347.6385383469.

Adding to 42013005 its reverse (50031024), we get a palindrome (92044029).

The spelling of 42013005 in words is "forty-two million, thirteen thousand, five".