390438101789 has 8 divisors (see below), whose sum is σ = 407494644480. Its totient is φ = 373388306896.

The previous prime is 390438101749. The next prime is 390438101803. The reversal of 390438101789 is 987101834093.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-390438101789 is a prime.

It is a super-2 number, since 2×390438101789² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 390438101789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (390438101749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1568522 + ... + 1800315.

It is an arithmetic number, because the mean of its divisors is an integer number (50936830560).

Almost surely, 2^390438101789 is an apocalyptic number.

It is an amenable number.

390438101789 is a deficient number, since it is larger than the sum of its proper divisors (17056542691).

390438101789 is a wasteful number, since it uses less digits than its factorization.

390438101789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3373899.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 390438101789 in words is "three hundred ninety billion, four hundred thirty-eight million, one hundred one thousand, seven hundred eighty-nine".