42197415 has 16 divisors (see below), whose sum is σ = 72709728. Its totient is φ = 20774016.

The previous prime is 42197411. The next prime is 42197429. The reversal of 42197415 is 51479124.

It is a happy number.

42197415 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42197415 - 2² = 42197411 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42197411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108004 + ... + 108393.

It is an arithmetic number, because the mean of its divisors is an integer number (4544358).

Almost surely, 2^42197415 is an apocalyptic number.

42197415 is a deficient number, since it is larger than the sum of its proper divisors (30512313).

42197415 is a wasteful number, since it uses less digits than its factorization.

42197415 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216418.

The product of its digits is 10080, while the sum is 33.

The square root of 42197415 is about 6495.9537405988. The cubic root of 42197415 is about 348.1464322978.

The spelling of 42197415 in words is "forty-two million, one hundred ninety-seven thousand, four hundred fifteen".