42409335 has 16 divisors (see below), whose sum is σ = 68968800. Its totient is φ = 22247040.

The previous prime is 42409331. The next prime is 42409337. The reversal of 42409335 is 53390424.

It is not a de Polignac number, because 42409335 - 2² = 42409331 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42409331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22260 + ... + 24089.

It is an arithmetic number, because the mean of its divisors is an integer number (4310550).

Almost surely, 2^42409335 is an apocalyptic number.

42409335 is a deficient number, since it is larger than the sum of its proper divisors (26559465).

42409335 is a wasteful number, since it uses less digits than its factorization.

42409335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46418.

The product of its (nonzero) digits is 12960, while the sum is 30.

The square root of 42409335 is about 6512.2450046048. The cubic root of 42409335 is about 348.7282690947.

Adding to 42409335 its reverse (53390424), we get a palindrome (95799759).

The spelling of 42409335 in words is "forty-two million, four hundred nine thousand, three hundred thirty-five".