42005070 has 24 divisors (see below), whose sum is σ = 109213416. Its totient is φ = 11201328.

The previous prime is 42005069. The next prime is 42005071. The reversal of 42005070 is 7050024.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (42005069) and next prime (42005071).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42005071) 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 11 ways as a sum of consecutive naturals, for example, 233272 + ... + 233451.

It is an arithmetic number, because the mean of its divisors is an integer number (4550559).

Almost surely, 2^42005070 is an apocalyptic number.

42005070 is an abundant number, since it is smaller than the sum of its proper divisors (67208346).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42005070 is a wasteful number, since it uses less digits than its factorization.

42005070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466736 (or 466733 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 18.

The square root of 42005070 is about 6481.1318455961. The cubic root of 42005070 is about 347.6166507950.

Adding to 42005070 its reverse (7050024), we get a palindrome (49055094).

The spelling of 42005070 in words is "forty-two million, five thousand, seventy".