42030105 has 32 divisors (see below), whose sum is σ = 73524864. Its totient is φ = 20376576.

The previous prime is 42030097. The next prime is 42030119. The reversal of 42030105 is 50103024.

It is not a de Polignac number, because 42030105 - 2³ = 42030097 is a prime.

It is a super-2 number, since 2×42030105² = 3533059452622050, which contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11457 + ... + 14673.

It is an arithmetic number, because the mean of its divisors is an integer number (2297652).

Almost surely, 2^42030105 is an apocalyptic number.

It is an amenable number.

42030105 is a deficient number, since it is larger than the sum of its proper divisors (31494759).

42030105 is a wasteful number, since it uses less digits than its factorization.

42030105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305.

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

The square root of 42030105 is about 6483.0629335215. The cubic root of 42030105 is about 347.6856968610.

Adding to 42030105 its reverse (50103024), we get a palindrome (92133129).

The spelling of 42030105 in words is "forty-two million, thirty thousand, one hundred five".