42073045 has 32 divisors (see below), whose sum is σ = 63092736. Its totient is φ = 26265600.

The previous prime is 42073027. The next prime is 42073091. The reversal of 42073045 is 54037024.

It is not a de Polignac number, because 42073045 - 2¹⁵ = 42040277 is a prime.

It is a super-2 number, since 2×42073045² = 3540282231144050, which contains 22 as substring.

It is a congruent number.

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, 17305 + ... + 19585.

It is an arithmetic number, because the mean of its divisors is an integer number (1971648).

Almost surely, 2^42073045 is an apocalyptic number.

It is an amenable number.

42073045 is a deficient number, since it is larger than the sum of its proper divisors (21019691).

42073045 is a wasteful number, since it uses less digits than its factorization.

42073045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2341.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 42073045 is about 6486.3737943477. The cubic root of 42073045 is about 347.8040607689.

The spelling of 42073045 in words is "forty-two million, seventy-three thousand, forty-five".