42354505 has 8 divisors (see below), whose sum is σ = 50863752. Its totient is φ = 33858048.

The previous prime is 42354491. The next prime is 42354583. The reversal of 42354505 is 50545324.

It can be written as a sum of positive squares in 4 ways, for example, as 441 + 42354064 = 21^2 + 6508^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42354505 - 2²¹ = 40257353 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 7129 + ... + 11641.

It is an arithmetic number, because the mean of its divisors is an integer number (6357969).

Almost surely, 2^42354505 is an apocalyptic number.

It is an amenable number.

42354505 is a deficient number, since it is larger than the sum of its proper divisors (8509247).

42354505 is a wasteful number, since it uses less digits than its factorization.

42354505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6395.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 42354505 is about 6508.0338812886. The cubic root of 42354505 is about 348.5779168418.

Adding to 42354505 its reverse (50545324), we get a palindrome (92899829).

The spelling of 42354505 in words is "forty-two million, three hundred fifty-four thousand, five hundred five".