39052240 has 20 divisors (see below), whose sum is σ = 90796644. Its totient is φ = 15620864.

The previous prime is 39052231. The next prime is 39052249. The reversal of 39052240 is 4225093.

It is a happy number.

39052240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (39052231) and next prime (39052249).

It can be written as a sum of positive squares in 2 ways, for example, as 20286016 + 18766224 = 4504^2 + 4332^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39052249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243997 + ... + 244156.

Almost surely, 2^39052240 is an apocalyptic number.

It is an amenable number.

39052240 is an abundant number, since it is smaller than the sum of its proper divisors (51744404).

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

39052240 is a wasteful number, since it uses less digits than its factorization.

39052240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 488166 (or 488160 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 39052240 is about 6249.1791460959. The cubic root of 39052240 is about 339.2724928867.

The spelling of 39052240 in words is "thirty-nine million, fifty-two thousand, two hundred forty".