42789216 has 48 divisors (see below), whose sum is σ = 118238400. Its totient is φ = 13511808.

The previous prime is 42789211. The next prime is 42789247. The reversal of 42789216 is 61298724.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42789211) 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 7 ways as a sum of consecutive naturals, for example, 9906 + ... + 13553.

It is an arithmetic number, because the mean of its divisors is an integer number (2463300).

Almost surely, 2^42789216 is an apocalyptic number.

It is an amenable number.

42789216 is an abundant number, since it is smaller than the sum of its proper divisors (75449184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42789216 is a wasteful number, since it uses less digits than its factorization.

42789216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23491 (or 23483 counting only the distinct ones).

The product of its digits is 48384, while the sum is 39.

The square root of 42789216 is about 6541.3466503465. The cubic root of 42789216 is about 349.7664182974.

The spelling of 42789216 in words is "forty-two million, seven hundred eighty-nine thousand, two hundred sixteen".