240042215 has 8 divisors (see below), whose sum is σ = 329200800. Its totient is φ = 164600352.

The previous prime is 240042197. The next prime is 240042217. The reversal of 240042215 is 512240042.

It is a happy number.

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

It is not a de Polignac number, because 240042215 - 2²⁰ = 238993639 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (240042217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3429140 + ... + 3429209.

It is an arithmetic number, because the mean of its divisors is an integer number (41150100).

Almost surely, 2^240042215 is an apocalyptic number.

240042215 is a deficient number, since it is larger than the sum of its proper divisors (89158585).

240042215 is an equidigital number, since it uses as much as digits as its factorization.

240042215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6858361.

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 240042215 is about 15493.2958081875. The cubic root of 240042215 is about 621.4829356714.

Adding to 240042215 its reverse (512240042), we get a palindrome (752282257).

The spelling of 240042215 in words is "two hundred forty million, forty-two thousand, two hundred fifteen".