3781829328 has 40 divisors (see below), whose sum is σ = 9772017408. Its totient is φ = 1260314112.

The previous prime is 3781829323. The next prime is 3781829329. The reversal of 3781829328 is 8239281873.

It is a super-2 number, since 2×3781829328² = 28604466132241863168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3781829321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 314401 + ... + 326207.

Almost surely, 2^3781829328 is an apocalyptic number.

It is an amenable number.

3781829328 is an abundant number, since it is smaller than the sum of its proper divisors (5990188080).

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

3781829328 is a wasteful number, since it uses less digits than its factorization.

3781829328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18491 (or 18485 counting only the distinct ones).

The product of its digits is 1161216, while the sum is 51.

The square root of 3781829328 is about 61496.5798073356. The cubic root of 3781829328 is about 1557.9994803689. Note that the first 3 decimals are identical.

The spelling of 3781829328 in words is "three billion, seven hundred eighty-one million, eight hundred twenty-nine thousand, three hundred twenty-eight".