42289637 has 8 divisors (see below), whose sum is σ = 45986304. Its totient is φ = 38656368.

The previous prime is 42289633. The next prime is 42289651. The reversal of 42289637 is 73698224.

It is a happy number.

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 42289637 - 2² = 42289633 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42289594 and 42289603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42289633) 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, 14453 + ... + 17130.

It is an arithmetic number, because the mean of its divisors is an integer number (5748288).

Almost surely, 2^42289637 is an apocalyptic number.

It is an amenable number.

42289637 is a deficient number, since it is larger than the sum of its proper divisors (3696667).

42289637 is a wasteful number, since it uses less digits than its factorization.

42289637 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31699.

The product of its digits is 145152, while the sum is 41.

The square root of 42289637 is about 6503.0482852275. The cubic root of 42289637 is about 348.3998711951.

The spelling of 42289637 in words is "forty-two million, two hundred eighty-nine thousand, six hundred thirty-seven".