42241745 has 32 divisors (see below), whose sum is σ = 62802432. Its totient is φ = 26560512.

The previous prime is 42241733. The next prime is 42241763. The reversal of 42241745 is 54714224.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-42241745 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 119489 + ... + 119841.

It is an arithmetic number, because the mean of its divisors is an integer number (1962576).

Almost surely, 2^42241745 is an apocalyptic number.

It is an amenable number.

42241745 is a deficient number, since it is larger than the sum of its proper divisors (20560687).

42241745 is a wasteful number, since it uses less digits than its factorization.

42241745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641.

The product of its digits is 8960, while the sum is 29.

The square root of 42241745 is about 6499.3649689797. The cubic root of 42241745 is about 348.2683033497.

Adding to 42241745 its reverse (54714224), we get a palindrome (96955969).

It can be divided in two parts, 4224 and 1745, that multiplied together give a triangular number (7370880 = T₃₈₃₉).

The spelling of 42241745 in words is "forty-two million, two hundred forty-one thousand, seven hundred forty-five".