42838055 has 8 divisors (see below), whose sum is σ = 55360032. Its totient is φ = 31634208.

The previous prime is 42838051. The next prime is 42838057. The reversal of 42838055 is 55083824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42838055 - 2² = 42838051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42838051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 329459 + ... + 329588.

It is an arithmetic number, because the mean of its divisors is an integer number (6920004).

Almost surely, 2^42838055 is an apocalyptic number.

42838055 is a deficient number, since it is larger than the sum of its proper divisors (12521977).

42838055 is a wasteful number, since it uses less digits than its factorization.

42838055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659065.

The product of its (nonzero) digits is 38400, while the sum is 35.

The square root of 42838055 is about 6545.0786855469. The cubic root of 42838055 is about 349.8994404985.

It can be divided in two parts, 428 and 38055, that added together give a palindrome (38483).

The spelling of 42838055 in words is "forty-two million, eight hundred thirty-eight thousand, fifty-five".