42242415 has 48 divisors (see below), whose sum is σ = 74066400. Its totient is φ = 20530944.

The previous prime is 42242413. The next prime is 42242437. The reversal of 42242415 is 51424224.

It is a happy number.

It is not a de Polignac number, because 42242415 - 2¹ = 42242413 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42242413) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 156901 + ... + 157169.

It is an arithmetic number, because the mean of its divisors is an integer number (1543050).

Almost surely, 2^42242415 is an apocalyptic number.

42242415 is a deficient number, since it is larger than the sum of its proper divisors (31823985).

42242415 is a wasteful number, since it uses less digits than its factorization.

42242415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 344 (or 325 counting only the distinct ones).

The product of its digits is 2560, while the sum is 24.

The square root of 42242415 is about 6499.4165122725. The cubic root of 42242415 is about 348.2701446446.

Adding to 42242415 its reverse (51424224), we get a palindrome (93666639).

The spelling of 42242415 in words is "forty-two million, two hundred forty-two thousand, four hundred fifteen".