42742325 has 6 divisors (see below), whose sum is σ = 53000514. Its totient is φ = 34193840.

The previous prime is 42742321. The next prime is 42742331. The reversal of 42742325 is 52324724.

It can be written as a sum of positive squares in 3 ways, for example, as 14205361 + 28536964 = 3769^2 + 5342^2 .

It is not a de Polignac number, because 42742325 - 2² = 42742321 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42742321) 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 5 ways as a sum of consecutive naturals, for example, 854822 + ... + 854871.

It is an arithmetic number, because the mean of its divisors is an integer number (8833419).

Almost surely, 2^42742325 is an apocalyptic number.

It is an amenable number.

42742325 is a deficient number, since it is larger than the sum of its proper divisors (10258189).

42742325 is a wasteful number, since it uses less digits than its factorization.

42742325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1709703 (or 1709698 counting only the distinct ones).

The product of its digits is 13440, while the sum is 29.

The square root of 42742325 is about 6537.7614670467. The cubic root of 42742325 is about 349.6386065625.

The spelling of 42742325 in words is "forty-two million, seven hundred forty-two thousand, three hundred twenty-five".