42235477 has 4 divisors (see below), whose sum is σ = 42265260. Its totient is φ = 42205696.

The previous prime is 42235471. The next prime is 42235481. The reversal of 42235477 is 77453224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38514436 + 3721041 = 6206^2 + 1929^2 .

It is a cyclic number.

It is not a de Polignac number, because 42235477 - 2¹⁵ = 42202709 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12652 + ... + 15637.

It is an arithmetic number, because the mean of its divisors is an integer number (10566315).

Almost surely, 2^42235477 is an apocalyptic number.

It is an amenable number.

42235477 is a deficient number, since it is larger than the sum of its proper divisors (29783).

42235477 is a wasteful number, since it uses less digits than its factorization.

42235477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29782.

The product of its digits is 47040, while the sum is 34.

The square root of 42235477 is about 6498.8827501348. The cubic root of 42235477 is about 348.2510766805.

The spelling of 42235477 in words is "forty-two million, two hundred thirty-five thousand, four hundred seventy-seven".