42395745 has 64 divisors (see below), whose sum is σ = 82944000. Its totient is φ = 18061056.

The previous prime is 42395741. The next prime is 42395753. The reversal of 42395745 is 54759324.

It is not a de Polignac number, because 42395745 - 2² = 42395741 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42395741) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 157471 + ... + 157739.

It is an arithmetic number, because the mean of its divisors is an integer number (1296000).

Almost surely, 2^42395745 is an apocalyptic number.

It is an amenable number.

42395745 is a deficient number, since it is larger than the sum of its proper divisors (40548255).

42395745 is a wasteful number, since it uses less digits than its factorization.

42395745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382.

The product of its digits is 151200, while the sum is 39.

The square root of 42395745 is about 6511.2015020271. The cubic root of 42395745 is about 348.6910153195.

The spelling of 42395745 in words is "forty-two million, three hundred ninety-five thousand, seven hundred forty-five".