390000044 has 24 divisors (see below), whose sum is σ = 781579008. Its totient is φ = 166804560.

The previous prime is 390000041. The next prime is 390000049. The reversal of 390000044 is 440000093.

It is a junction number, because it is equal to n+sod(n) for n = 389999980 and 390000025.

It is not an unprimeable number, because it can be changed into a prime (390000041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239 + ... + 27929.

It is an arithmetic number, because the mean of its divisors is an integer number (32565792).

Almost surely, 2^390000044 is an apocalyptic number.

It is an amenable number.

390000044 is an abundant number, since it is smaller than the sum of its proper divisors (391578964).

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

390000044 is a wasteful number, since it uses less digits than its factorization.

390000044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28205 (or 28203 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 390000044 is about 19748.4187721448. The cubic root of 390000044 is about 730.6143848824.

The spelling of 390000044 in words is "three hundred ninety million, forty-four", and thus it is an aban number.