39021045 has 32 divisors (see below), whose sum is σ = 72880128. Its totient is φ = 17456448.

The previous prime is 39021043. The next prime is 39021061. The reversal of 39021045 is 54012093.

It is not a de Polignac number, because 39021045 - 2¹ = 39021043 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39021043) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 982 + ... + 8888.

It is an arithmetic number, because the mean of its divisors is an integer number (2277504).

Almost surely, 2^39021045 is an apocalyptic number.

39021045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39021045 is a deficient number, since it is larger than the sum of its proper divisors (33859083).

39021045 is a wasteful number, since it uses less digits than its factorization.

39021045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7969.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 39021045 is about 6246.6827196521. The cubic root of 39021045 is about 339.1821316617.

The spelling of 39021045 in words is "thirty-nine million, twenty-one thousand, forty-five".