42235479 has 32 divisors (see below), whose sum is σ = 73516800. Its totient is φ = 23626080.

The previous prime is 42235471. The next prime is 42235481. The reversal of 42235479 is 97453224.

42235479 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 42235479 - 2³ = 42235471 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42235471) 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 31 ways as a sum of consecutive naturals, for example, 1609 + ... + 9330.

It is an arithmetic number, because the mean of its divisors is an integer number (2297400).

Almost surely, 2^42235479 is an apocalyptic number.

42235479 is a deficient number, since it is larger than the sum of its proper divisors (31281321).

42235479 is a wasteful number, since it uses less digits than its factorization.

42235479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10972 (or 10966 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 42235479 is about 6498.8829040074. The cubic root of 42235479 is about 348.2510821774.

The spelling of 42235479 in words is "forty-two million, two hundred thirty-five thousand, four hundred seventy-nine".