39120284 has 12 divisors (see below), whose sum is σ = 78240624. Its totient is φ = 16765824.

The previous prime is 39120269. The next prime is 39120287. The reversal of 39120284 is 48202193.

39120284 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39120287) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 698549 + ... + 698604.

It is an arithmetic number, because the mean of its divisors is an integer number (6520052).

Almost surely, 2^39120284 is an apocalyptic number.

It is an amenable number.

39120284 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39120284 is a wasteful number, since it uses less digits than its factorization.

39120284 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1397164 (or 1397162 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 39120284 is about 6254.6210117001. The cubic root of 39120284 is about 339.4694262129.

The spelling of 39120284 in words is "thirty-nine million, one hundred twenty thousand, two hundred eighty-four".