389242224 has 60 divisors (see below), whose sum is σ = 1244960496. Its totient is φ = 111211776.

The previous prime is 389242187. The next prime is 389242241. The reversal of 389242224 is 422242983.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 192069 + ... + 194084.

Almost surely, 2^389242224 is an apocalyptic number.

It is an amenable number.

389242224 is an abundant number, since it is smaller than the sum of its proper divisors (855718272).

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

389242224 is a wasteful number, since it uses less digits than its factorization.

389242224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 386174 (or 386165 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 389242224 is about 19729.2225898539. Note that the first 3 decimals coincide. The cubic root of 389242224 is about 730.1408522856.

The spelling of 389242224 in words is "three hundred eighty-nine million, two hundred forty-two thousand, two hundred twenty-four".