3580381385 has 16 divisors (see below), whose sum is σ = 4942762752. Its totient is φ = 2438856000.

The previous prime is 3580381381. The next prime is 3580381391. The reversal of 3580381385 is 5831830853.

It is not a de Polignac number, because 3580381385 - 2² = 3580381381 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3580381381) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 333446 + ... + 344015.

It is an arithmetic number, because the mean of its divisors is an integer number (308922672).

Almost surely, 2^3580381385 is an apocalyptic number.

3580381385 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3580381385 is a deficient number, since it is larger than the sum of its proper divisors (1362381367).

3580381385 is a wasteful number, since it uses less digits than its factorization.

3580381385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677624.

The product of its (nonzero) digits is 345600, while the sum is 44.

The square root of 3580381385 is about 59836.2881953752. The cubic root of 3580381385 is about 1529.8297310057.

The spelling of 3580381385 in words is "three billion, five hundred eighty million, three hundred eighty-one thousand, three hundred eighty-five".