39000045 has 32 divisors (see below), whose sum is σ = 72495360. Its totient is φ = 17533440.

The previous prime is 39000037. The next prime is 39000053. The reversal of 39000045 is 54000093.

It is an interprime number because it is at equal distance from previous prime (39000037) and next prime (39000053).

It is not a de Polignac number, because 39000045 - 2³ = 39000037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 38999985 and 39000030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3361 + ... + 9449.

It is an arithmetic number, because the mean of its divisors is an integer number (2265480).

Almost surely, 2^39000045 is an apocalyptic number.

39000045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39000045 is a deficient number, since it is larger than the sum of its proper divisors (33495315).

39000045 is a wasteful number, since it uses less digits than its factorization.

39000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6165.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 39000045 is about 6245.0016012808. The cubic root of 39000045 is about 339.1212747326.

The spelling of 39000045 in words is "thirty-nine million, forty-five", and thus it is an aban number and an uban number.