42173355 has 16 divisors (see below), whose sum is σ = 77117184. Its totient is φ = 19279200.

The previous prime is 42173347. The next prime is 42173357. The reversal of 42173355 is 55337124.

It is not a de Polignac number, because 42173355 - 2³ = 42173347 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42173357) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 200721 + ... + 200930.

It is an arithmetic number, because the mean of its divisors is an integer number (4819824).

Almost surely, 2^42173355 is an apocalyptic number.

42173355 is a deficient number, since it is larger than the sum of its proper divisors (34943829).

42173355 is a wasteful number, since it uses less digits than its factorization.

42173355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401666.

The product of its digits is 12600, while the sum is 30.

The square root of 42173355 is about 6494.1015544877. The cubic root of 42173355 is about 348.0802513427.

The spelling of 42173355 in words is "forty-two million, one hundred seventy-three thousand, three hundred fifty-five".