4038840920 has 32 divisors (see below), whose sum is σ = 9118433520. Its totient is φ = 1610017920.

The previous prime is 4038840913. The next prime is 4038840937. The reversal of 4038840920 is 290488304.

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, 160586 + ... + 184025.

Almost surely, 2^4038840920 is an apocalyptic number.

4038840920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4038840920 is an abundant number, since it is smaller than the sum of its proper divisors (5079592600).

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

4038840920 is a wasteful number, since it uses less digits than its factorization.

4038840920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344915 (or 344911 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 38.

The square root of 4038840920 is about 63551.8758181063. The cubic root of 4038840920 is about 1592.5225204589.

The spelling of 4038840920 in words is "four billion, thirty-eight million, eight hundred forty thousand, nine hundred twenty".