42113445 has 24 divisors (see below), whose sum is σ = 74067168. Its totient is φ = 20417760.

The previous prime is 42113431. The next prime is 42113459. The reversal of 42113445 is 54431124.

It is an interprime number because it is at equal distance from previous prime (42113431) and next prime (42113459).

It is not a de Polignac number, because 42113445 - 2⁷ = 42113317 is a prime.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 9787 + ... + 13416.

It is an arithmetic number, because the mean of its divisors is an integer number (3086132).

Almost surely, 2^42113445 is an apocalyptic number.

It is an amenable number.

42113445 is a deficient number, since it is larger than the sum of its proper divisors (31953723).

42113445 is a wasteful number, since it uses less digits than its factorization.

42113445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23233 (or 23222 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 42113445 is about 6489.4872678818. The cubic root of 42113445 is about 347.9153496709.

Adding to 42113445 its reverse (54431124), we get a palindrome (96544569).

The spelling of 42113445 in words is "forty-two million, one hundred thirteen thousand, four hundred forty-five".