39345545 has 8 divisors (see below), whose sum is σ = 47418696. Its totient is φ = 31340416.

The previous prime is 39345529. The next prime is 39345601. The reversal of 39345545 is 54554393.

It can be written as a sum of positive squares in 4 ways, for example, as 1731856 + 37613689 = 1316^2 + 6133^2 .

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 39345545 - 2⁴ = 39345529 is a prime.

It is a super-2 number, since 2×39345545² = 3096143822694050, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 39345499 and 39345508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15722 + ... + 18051.

It is an arithmetic number, because the mean of its divisors is an integer number (5927337).

Almost surely, 2^39345545 is an apocalyptic number.

It is an amenable number.

39345545 is a deficient number, since it is larger than the sum of its proper divisors (8073151).

39345545 is a wasteful number, since it uses less digits than its factorization.

39345545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34011.

The product of its digits is 162000, while the sum is 38.

The square root of 39345545 is about 6272.6027293301. The cubic root of 39345545 is about 340.1197530873.

The spelling of 39345545 in words is "thirty-nine million, three hundred forty-five thousand, five hundred forty-five".