42205315 has 8 divisors (see below), whose sum is σ = 51340608. Its totient is φ = 33301440.

The previous prime is 42205309. The next prime is 42205337. The reversal of 42205315 is 51350224.

42205315 = 65² + 66² + ... + 502².

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

It is not a de Polignac number, because 42205315 - 2⁹ = 42204803 is a prime.

It is a super-2 number, since 2×42205315² = 3562577228498450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57451 + ... + 58180.

It is an arithmetic number, because the mean of its divisors is an integer number (6417576).

Almost surely, 2^42205315 is an apocalyptic number.

42205315 is a deficient number, since it is larger than the sum of its proper divisors (9135293).

42205315 is a wasteful number, since it uses less digits than its factorization.

42205315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115709.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 42205315 is about 6496.5617829741. The cubic root of 42205315 is about 348.1681570503.

Adding to 42205315 its reverse (51350224), we get a palindrome (93555539).

The spelling of 42205315 in words is "forty-two million, two hundred five thousand, three hundred fifteen".