42432215 has 16 divisors (see below), whose sum is σ = 58337280. Its totient is φ = 29024160.

The previous prime is 42432209. The next prime is 42432223. The reversal of 42432215 is 51223424.

It is a happy number.

It is not a de Polignac number, because 42432215 - 2¹⁶ = 42366679 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15500 + ... + 18030.

It is an arithmetic number, because the mean of its divisors is an integer number (3646080).

Almost surely, 2^42432215 is an apocalyptic number.

42432215 is a deficient number, since it is larger than the sum of its proper divisors (15905065).

42432215 is a wasteful number, since it uses less digits than its factorization.

42432215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3022.

The product of its digits is 1920, while the sum is 23.

The square root of 42432215 is about 6514.0014583971. The cubic root of 42432215 is about 348.7909712360.

Adding to 42432215 its reverse (51223424), we get a palindrome (93655639).

The spelling of 42432215 in words is "forty-two million, four hundred thirty-two thousand, two hundred fifteen".