42945339 has 8 divisors (see below), whose sum is σ = 60274240. Its totient is φ = 27123336.

The previous prime is 42945307. The next prime is 42945341. The reversal of 42945339 is 93354924.

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

It is not a de Polignac number, because 42945339 - 2⁵ = 42945307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42945297 and 42945306.

It is not an unprimeable number, because it can be changed into a prime (42945359) 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, 376657 + ... + 376770.

It is an arithmetic number, because the mean of its divisors is an integer number (7534280).

Almost surely, 2^42945339 is an apocalyptic number.

42945339 is a deficient number, since it is larger than the sum of its proper divisors (17328901).

42945339 is a wasteful number, since it uses less digits than its factorization.

42945339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753449.

The product of its digits is 116640, while the sum is 39.

The square root of 42945339 is about 6553.2693367509. The cubic root of 42945339 is about 350.1912940678.

The spelling of 42945339 in words is "forty-two million, nine hundred forty-five thousand, three hundred thirty-nine".