390329244 has 18 divisors (see below), whose sum is σ = 986665680. Its totient is φ = 130109736.

The previous prime is 390329227. The next prime is 390329249. The reversal of 390329244 is 442923093.

390329244 is a `hidden beast` number, since 3 + 90 + 329 + 244 = 666.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×390329244² = 304713837443223072, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 10842479 = 390329244 / (3 + 9 + 0 + 3 + 2 + 9 + 2 + 4 + 4).

It is a junction number, because it is equal to n+sod(n) for n = 390329199 and 390329208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390329249) 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 5 ways as a sum of consecutive naturals, for example, 5421204 + ... + 5421275.

It is an arithmetic number, because the mean of its divisors is an integer number (54814760).

Almost surely, 2^390329244 is an apocalyptic number.

It is an amenable number.

390329244 is an abundant number, since it is smaller than the sum of its proper divisors (596336436).

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

390329244 is a wasteful number, since it uses less digits than its factorization.

390329244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10842489 (or 10842484 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 36.

The square root of 390329244 is about 19756.7518585419. The cubic root of 390329244 is about 730.8198982038.

The spelling of 390329244 in words is "three hundred ninety million, three hundred twenty-nine thousand, two hundred forty-four".