39021012 has 36 divisors (see below), whose sum is σ = 101046036. Its totient is φ = 12689280.

The previous prime is 39020999. The next prime is 39021013. The reversal of 39021012 is 21012093.

It is a happy number.

39021012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 15634116 + 23386896 = 3954^2 + 4836^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39021013) 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 11 ways as a sum of consecutive naturals, for example, 11743 + ... + 14694.

Almost surely, 2^39021012 is an apocalyptic number.

It is an amenable number.

39021012 is an abundant number, since it is smaller than the sum of its proper divisors (62025024).

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

39021012 is a wasteful number, since it uses less digits than its factorization.

39021012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26488 (or 26483 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 39021012 is about 6246.6800782496. The cubic root of 39021012 is about 339.1820360465.

The spelling of 39021012 in words is "thirty-nine million, twenty-one thousand, twelve".