42169737 has 8 divisors (see below), whose sum is σ = 56369536. Its totient is φ = 28041552.

The previous prime is 42169711. The next prime is 42169739. The reversal of 42169737 is 73796124.

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

It is not a de Polignac number, because 42169737 - 2¹¹ = 42167689 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42169695 and 42169704.

It is not an unprimeable number, because it can be changed into a prime (42169739) 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, 16513 + ... + 18894.

It is an arithmetic number, because the mean of its divisors is an integer number (7046192).

Almost surely, 2^42169737 is an apocalyptic number.

It is an amenable number.

42169737 is a deficient number, since it is larger than the sum of its proper divisors (14199799).

42169737 is a wasteful number, since it uses less digits than its factorization.

42169737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35807.

The product of its digits is 63504, while the sum is 39.

The square root of 42169737 is about 6493.8229880402. The cubic root of 42169737 is about 348.0702972666.

The spelling of 42169737 in words is "forty-two million, one hundred sixty-nine thousand, seven hundred thirty-seven".