42689216 has 14 divisors (see below), whose sum is σ = 84711540. Its totient is φ = 21344576.

The previous prime is 42689209. The next prime is 42689233. The reversal of 42689216 is 61298624.

It is a super-3 number, since 3×42689216³ (a number of 24 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42689216.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 333446 + ... + 333573.

Almost surely, 2^42689216 is an apocalyptic number.

It is an amenable number.

42689216 is a deficient number, since it is larger than the sum of its proper divisors (42022324).

42689216 is an equidigital number, since it uses as much as digits as its factorization.

42689216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 667031 (or 667021 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 42689216 is about 6533.6984931966. The cubic root of 42689216 is about 349.4937333566.

The spelling of 42689216 in words is "forty-two million, six hundred eighty-nine thousand, two hundred sixteen".