42010445 has 16 divisors (see below), whose sum is σ = 52179120. Its totient is φ = 32448000.

The previous prime is 42010439. The next prime is 42010459. The reversal of 42010445 is 54401024.

It can be written as a sum of positive squares in 8 ways, for example, as 3396649 + 38613796 = 1843^2 + 6214^2 .

It is not a de Polignac number, because 42010445 - 2¹⁰ = 42009421 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19691 + ... + 21719.

It is an arithmetic number, because the mean of its divisors is an integer number (3261195).

Almost surely, 2^42010445 is an apocalyptic number.

It is an amenable number.

42010445 is a deficient number, since it is larger than the sum of its proper divisors (10168675).

42010445 is a wasteful number, since it uses less digits than its factorization.

42010445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2176.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 42010445 is about 6481.5464975575. The cubic root of 42010445 is about 347.6314772577.

Adding to 42010445 its reverse (54401024), we get a palindrome (96411469).

The spelling of 42010445 in words is "forty-two million, ten thousand, four hundred forty-five".