42718445 has 48 divisors (see below), whose sum is σ = 66090816. Its totient is φ = 26426400.

The previous prime is 42718439. The next prime is 42718451. The reversal of 42718445 is 54481724.

It is an interprime number because it is at equal distance from previous prime (42718439) and next prime (42718451).

It is not a de Polignac number, because 42718445 - 2¹⁰ = 42717421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 326030 + ... + 326160.

It is an arithmetic number, because the mean of its divisors is an integer number (1376892).

Almost surely, 2^42718445 is an apocalyptic number.

It is an amenable number.

42718445 is a deficient number, since it is larger than the sum of its proper divisors (23372371).

42718445 is a wasteful number, since it uses less digits than its factorization.

42718445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183 (or 154 counting only the distinct ones).

The product of its digits is 35840, while the sum is 35.

The square root of 42718445 is about 6535.9348986966. The cubic root of 42718445 is about 349.5734804428.

The spelling of 42718445 in words is "forty-two million, seven hundred eighteen thousand, four hundred forty-five".