39442045 has 8 divisors (see below), whose sum is σ = 47424096. Its totient is φ = 31491216.

The previous prime is 39442021. The next prime is 39442049. The reversal of 39442045 is 54024493.

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 39442045 - 2²³ = 31053437 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39441998 and 39442016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39442049) 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, 4927 + ... + 10156.

It is an arithmetic number, because the mean of its divisors is an integer number (5928012).

Almost surely, 2^39442045 is an apocalyptic number.

It is an amenable number.

39442045 is a deficient number, since it is larger than the sum of its proper divisors (7982051).

39442045 is a wasteful number, since it uses less digits than its factorization.

39442045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15611.

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 39442045 is about 6280.2902003013. The cubic root of 39442045 is about 340.3975885207.

The spelling of 39442045 in words is "thirty-nine million, four hundred forty-two thousand, forty-five".