42215635 has 32 divisors (see below), whose sum is σ = 64530432. Its totient is φ = 25745280.

The previous prime is 42215629. The next prime is 42215647. The reversal of 42215635 is 53651224.

It is not a de Polignac number, because 42215635 - 2⁹ = 42215123 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16929 + ... + 19261.

It is an arithmetic number, because the mean of its divisors is an integer number (2016576).

Almost surely, 2^42215635 is an apocalyptic number.

42215635 is a deficient number, since it is larger than the sum of its proper divisors (22314797).

42215635 is a wasteful number, since it uses less digits than its factorization.

42215635 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2403.

The product of its digits is 7200, while the sum is 28.

The square root of 42215635 is about 6497.3560007129. The cubic root of 42215635 is about 348.1965326436.

Adding to 42215635 its reverse (53651224), we get a palindrome (95866859).

The spelling of 42215635 in words is "forty-two million, two hundred fifteen thousand, six hundred thirty-five".