42789349 has 8 divisors (see below), whose sum is σ = 45715040. Its totient is φ = 39931056.

The previous prime is 42789287. The next prime is 42789359. The reversal of 42789349 is 94398724.

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 42789349 - 2¹¹ = 42787301 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42789299 and 42789308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42789359) 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, 15534 + ... + 18079.

It is an arithmetic number, because the mean of its divisors is an integer number (5714380).

Almost surely, 2^42789349 is an apocalyptic number.

It is an amenable number.

42789349 is a deficient number, since it is larger than the sum of its proper divisors (2925691).

42789349 is a wasteful number, since it uses less digits than its factorization.

42789349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33699.

The product of its digits is 435456, while the sum is 46.

The square root of 42789349 is about 6541.3568164411. The cubic root of 42789349 is about 349.7667806854.

The spelling of 42789349 in words is "forty-two million, seven hundred eighty-nine thousand, three hundred forty-nine".