42738555 has 16 divisors (see below), whose sum is σ = 68465664. Its totient is φ = 22765920.

The previous prime is 42738541. The next prime is 42738569. The reversal of 42738555 is 55583724.

42738555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (42738541) and next prime (42738569).

It is not a de Polignac number, because 42738555 - 2⁴ = 42738539 is a prime.

It is an unprimeable number.

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, 18262 + ... + 20468.

It is an arithmetic number, because the mean of its divisors is an integer number (4279104).

Almost surely, 2^42738555 is an apocalyptic number.

42738555 is a deficient number, since it is larger than the sum of its proper divisors (25727109).

42738555 is a wasteful number, since it uses less digits than its factorization.

42738555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3506.

The product of its digits is 168000, while the sum is 39.

The square root of 42738555 is about 6537.4731357001. The cubic root of 42738555 is about 349.6283265391.

The spelling of 42738555 in words is "forty-two million, seven hundred thirty-eight thousand, five hundred fifty-five".