39509052 has 24 divisors (see below), whose sum is σ = 100568832. Its totient is φ = 11972400.

The previous prime is 39509047. The next prime is 39509053. The reversal of 39509052 is 25090593.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39509053) 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, 149524 + ... + 149787.

It is an arithmetic number, because the mean of its divisors is an integer number (4190368).

Almost surely, 2^39509052 is an apocalyptic number.

It is an amenable number.

39509052 is an abundant number, since it is smaller than the sum of its proper divisors (61059780).

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

39509052 is a wasteful number, since it uses less digits than its factorization.

39509052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299329 (or 299327 counting only the distinct ones).

The product of its (nonzero) digits is 12150, while the sum is 33.

The square root of 39509052 is about 6285.6226421891. The cubic root of 39509052 is about 340.5902434811.

The spelling of 39509052 in words is "thirty-nine million, five hundred nine thousand, fifty-two".