39548945 has 8 divisors (see below), whose sum is σ = 47535336. Its totient is φ = 31588096.

The previous prime is 39548941. The next prime is 39548947. The reversal of 39548945 is 54984593.

It can be written as a sum of positive squares in 4 ways, for example, as 261121 + 39287824 = 511^2 + 6268^2 .

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 39548945 - 2² = 39548941 is a prime.

It is a super-2 number, since 2×39548945² = 3128238101226050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39548945.

It is not an unprimeable number, because it can be changed into a prime (39548941) 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, 2792 + ... + 9321.

It is an arithmetic number, because the mean of its divisors is an integer number (5941917).

Almost surely, 2^39548945 is an apocalyptic number.

It is an amenable number.

39548945 is a deficient number, since it is larger than the sum of its proper divisors (7986391).

39548945 is a wasteful number, since it uses less digits than its factorization.

39548945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12771.

The product of its digits is 777600, while the sum is 47.

The square root of 39548945 is about 6288.7951946299. The cubic root of 39548945 is about 340.7048382840.

The spelling of 39548945 in words is "thirty-nine million, five hundred forty-eight thousand, nine hundred forty-five".