39145449 has 8 divisors (see below), whose sum is σ = 59650240. Its totient is φ = 22368816.

The previous prime is 39145439. The next prime is 39145451. The reversal of 39145449 is 94454193.

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

It is not a de Polignac number, because 39145449 - 2⁴ = 39145433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39145439) 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, 932014 + ... + 932055.

It is an arithmetic number, because the mean of its divisors is an integer number (7456280).

Almost surely, 2^39145449 is an apocalyptic number.

It is an amenable number.

39145449 is a deficient number, since it is larger than the sum of its proper divisors (20504791).

39145449 is a wasteful number, since it uses less digits than its factorization.

39145449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1864079.

The product of its digits is 77760, while the sum is 39.

The square root of 39145449 is about 6256.6324009007. The cubic root of 39145449 is about 339.5422010510.

The spelling of 39145449 in words is "thirty-nine million, one hundred forty-five thousand, four hundred forty-nine".