39445560 has 192 divisors, whose sum is σ = 159943680. Its totient is φ = 8190720.

The previous prime is 39445543. The next prime is 39445561. The reversal of 39445560 is 6554493.

It is a happy number.

39445560 is a `hidden beast` number, since 3 + 94 + 4 + 5 + 560 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39445561) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 27009 + ... + 28431.

It is an arithmetic number, because the mean of its divisors is an integer number (833040).

Almost surely, 2^39445560 is an apocalyptic number.

39445560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39445560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79971840).

39445560 is an abundant number, since it is smaller than the sum of its proper divisors (120498120).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

39445560 is a wasteful number, since it uses less digits than its factorization.

39445560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1458 (or 1451 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 36.

The square root of 39445560 is about 6280.5700378230. The cubic root of 39445560 is about 340.4077000821.

It can be divided in two parts, 394 and 45560, that added together give a palindrome (45954).

The spelling of 39445560 in words is "thirty-nine million, four hundred forty-five thousand, five hundred sixty".