3780338521 has 8 divisors (see below), whose sum is σ = 3838172960. Its totient is φ = 3722545728.

The previous prime is 3780338519. The next prime is 3780338537. The reversal of 3780338521 is 1258330873.

3780338521 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 3780338521 - 2¹ = 3780338519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3780338561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 206770 + ... + 224308.

It is an arithmetic number, because the mean of its divisors is an integer number (479771620).

Almost surely, 2^3780338521 is an apocalyptic number.

It is an amenable number.

3780338521 is a deficient number, since it is larger than the sum of its proper divisors (57834439).

3780338521 is a wasteful number, since it uses less digits than its factorization.

3780338521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20823.

The product of its (nonzero) digits is 120960, while the sum is 40.

The square root of 3780338521 is about 61484.4575563613. The cubic root of 3780338521 is about 1557.7947309740.

The spelling of 3780338521 in words is "three billion, seven hundred eighty million, three hundred thirty-eight thousand, five hundred twenty-one".