390630044 has 24 divisors (see below), whose sum is σ = 822380160. Its totient is φ = 158601456.

The previous prime is 390630043. The next prime is 390630047. The reversal of 390630044 is 440036093.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 390629989 and 390630016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390630043) 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 7 ways as a sum of consecutive naturals, for example, 366602 + ... + 367665.

It is an arithmetic number, because the mean of its divisors is an integer number (34265840).

Almost surely, 2^390630044 is an apocalyptic number.

It is an amenable number.

390630044 is an abundant number, since it is smaller than the sum of its proper divisors (431750116).

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

390630044 is a wasteful number, since it uses less digits than its factorization.

390630044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 734297 (or 734295 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 390630044 is about 19764.3629798686. The cubic root of 390630044 is about 731.0075809387.

The spelling of 390630044 in words is "three hundred ninety million, six hundred thirty thousand, forty-four".