4238642928 has 40 divisors (see below), whose sum is σ = 11792123728. Its totient is φ = 1304197632.

The previous prime is 4238642893. The next prime is 4238642959. The reversal of 4238642928 is 8292468324.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3395725 + ... + 3396972.

Almost surely, 2^4238642928 is an apocalyptic number.

4238642928 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

4238642928 is an abundant number, since it is smaller than the sum of its proper divisors (7553480800).

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

4238642928 is a wasteful number, since it uses less digits than its factorization.

4238642928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6792721 (or 6792715 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 48.

The square root of 4238642928 is about 65104.8610166706. The cubic root of 4238642928 is about 1618.3617702007.

The spelling of 4238642928 in words is "four billion, two hundred thirty-eight million, six hundred forty-two thousand, nine hundred twenty-eight".