42120335 has 4 divisors (see below), whose sum is σ = 50544408. Its totient is φ = 33696264.

The previous prime is 42120301. The next prime is 42120367. The reversal of 42120335 is 53302124.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42120335 - 2²⁰ = 41071759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4212029 + ... + 4212038.

It is an arithmetic number, because the mean of its divisors is an integer number (12636102).

Almost surely, 2^42120335 is an apocalyptic number.

42120335 is a deficient number, since it is larger than the sum of its proper divisors (8424073).

42120335 is an equidigital number, since it uses as much as digits as its factorization.

42120335 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8424072.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 42120335 is about 6490.0181047513. The cubic root of 42120335 is about 347.9343222820.

Adding to 42120335 its reverse (53302124), we get a palindrome (95422459).

The spelling of 42120335 in words is "forty-two million, one hundred twenty thousand, three hundred thirty-five".