42177069 has 24 divisors (see below), whose sum is σ = 68088384. Its totient is φ = 24936000.

The previous prime is 42177061. The next prime is 42177071. The reversal of 42177069 is 96077124.

It is a happy number.

It is not a de Polignac number, because 42177069 - 2³ = 42177061 is a prime.

It is a super-2 number, since 2×42177069² = 3557810298861522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42177061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1137 + ... + 9254.

It is an arithmetic number, because the mean of its divisors is an integer number (2837016).

Almost surely, 2^42177069 is an apocalyptic number.

It is an amenable number.

42177069 is a deficient number, since it is larger than the sum of its proper divisors (25911315).

42177069 is a wasteful number, since it uses less digits than its factorization.

42177069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10449 (or 10446 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 42177069 is about 6494.3874999880. The cubic root of 42177069 is about 348.0904689482.

The spelling of 42177069 in words is "forty-two million, one hundred seventy-seven thousand, sixty-nine".