390043020 has 48 divisors (see below), whose sum is σ = 1149603840. Its totient is φ = 98536896.

The previous prime is 390043013. The next prime is 390043021. The reversal of 390043020 is 20340093.

It is not an unprimeable number, because it can be changed into a prime (390043021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 169932 + ... + 172211.

It is an arithmetic number, because the mean of its divisors is an integer number (23950080).

Almost surely, 2^390043020 is an apocalyptic number.

390043020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

390043020 is an abundant number, since it is smaller than the sum of its proper divisors (759560820).

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

390043020 is a wasteful number, since it uses less digits than its factorization.

390043020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342174 (or 342172 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 390043020 is about 19749.5068292856. The cubic root of 390043020 is about 730.6412205465.

It can be divided in two parts, 39004 and 3020, that added together give a palindrome (42024).

The spelling of 390043020 in words is "three hundred ninety million, forty-three thousand, twenty".