415440242 has 8 divisors (see below), whose sum is σ = 712183296. Its totient is φ = 178045812.

The previous prime is 415440239. The next prime is 415440247. The reversal of 415440242 is 242044514.

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

It is not an unprimeable number, because it can be changed into a prime (415440247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14837138 + ... + 14837165.

It is an arithmetic number, because the mean of its divisors is an integer number (89022912).

Almost surely, 2^415440242 is an apocalyptic number.

415440242 is a deficient number, since it is larger than the sum of its proper divisors (296743054).

415440242 is a wasteful number, since it uses less digits than its factorization.

415440242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29674312.

The product of its (nonzero) digits is 5120, while the sum is 26.

The square root of 415440242 is about 20382.3512382649. The cubic root of 415440242 is about 746.1672568789.

Adding to 415440242 its reverse (242044514), we get a palindrome (657484756).

The spelling of 415440242 in words is "four hundred fifteen million, four hundred forty thousand, two hundred forty-two".