39573445 has 8 divisors (see below), whose sum is σ = 48267000. Its totient is φ = 31139520.

The previous prime is 39573427. The next prime is 39573449. The reversal of 39573445 is 54437593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 410881 + 39162564 = 641^2 + 6258^2 .

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

It is not a de Polignac number, because 39573445 - 2⁹ = 39572933 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 39573398 and 39573407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39573449) 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, 64570 + ... + 65179.

It is an arithmetic number, because the mean of its divisors is an integer number (6033375).

Almost surely, 2^39573445 is an apocalyptic number.

It is an amenable number.

39573445 is a deficient number, since it is larger than the sum of its proper divisors (8693555).

39573445 is a wasteful number, since it uses less digits than its factorization.

39573445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129815.

The product of its digits is 226800, while the sum is 40.

The square root of 39573445 is about 6290.7428019273. The cubic root of 39573445 is about 340.7751776695.

The spelling of 39573445 in words is "thirty-nine million, five hundred seventy-three thousand, four hundred forty-five".