389952233442 has 54 divisors (see below), whose sum is σ = 853776488097. Its totient is φ = 128632018032.

The previous prime is 389952233423. The next prime is 389952233477. The reversal of 389952233442 is 244332259983.

389952233442 is a `hidden beast` number, since 3 + 89 + 9 + 522 + 3 + 34 + 4 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 292744841481 + 97207391961 = 541059^2 + 311781^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=441561.

Its product of digits (11197440) is a multiple of the sum of its prime factors (3072).

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 272883984 + ... + 272885412.

Almost surely, 2^389952233442 is an apocalyptic number.

389952233442 is an abundant number, since it is smaller than the sum of its proper divisors (463824254655).

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

389952233442 is an equidigital number, since it uses as much as digits as its factorization.

389952233442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3072 (or 1537 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The spelling of 389952233442 in words is "three hundred eighty-nine billion, nine hundred fifty-two million, two hundred thirty-three thousand, four hundred forty-two".