4133781380 has 12 divisors (see below), whose sum is σ = 8680940940. Its totient is φ = 1653512544.

The previous prime is 4133781361. The next prime is 4133781389. The reversal of 4133781380 is 831873314.

It can be written as a sum of positive squares in 2 ways, for example, as 1315657984 + 2818123396 = 36272^2 + 53086^2 .

It is not an unprimeable number, because it can be changed into a prime (4133781389) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103344515 + ... + 103344554.

It is an arithmetic number, because the mean of its divisors is an integer number (723411745).

Almost surely, 2^4133781380 is an apocalyptic number.

It is an amenable number.

4133781380 is an abundant number, since it is smaller than the sum of its proper divisors (4547159560).

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

4133781380 is a wasteful number, since it uses less digits than its factorization.

4133781380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206689078 (or 206689076 counting only the distinct ones).

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 4133781380 is about 64294.4894994898. The cubic root of 4133781380 is about 1604.9044019367.

The spelling of 4133781380 in words is "four billion, one hundred thirty-three million, seven hundred eighty-one thousand, three hundred eighty".