4042215 has 24 divisors (see below), whose sum is σ = 7172880. Its totient is φ = 2104704.

The previous prime is 4042211. The next prime is 4042217. The reversal of 4042215 is 5122404.

It is not a de Polignac number, because 4042215 - 2² = 4042211 is a prime.

4042215 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042211) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 891 + ... + 2979.

It is an arithmetic number, because the mean of its divisors is an integer number (298870).

Almost surely, 2^4042215 is an apocalyptic number.

4042215 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

4042215 is a deficient number, since it is larger than the sum of its proper divisors (3130665).

4042215 is a wasteful number, since it uses less digits than its factorization.

4042215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2143 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 18.

The square root of 4042215 is about 2010.5260505649. The cubic root of 4042215 is about 159.2965865706.

Adding to 4042215 its reverse (5122404), we get a palindrome (9164619).

The spelling of 4042215 in words is "four million, forty-two thousand, two hundred fifteen".