3485720380 has 24 divisors (see below), whose sum is σ = 7638275232. Its totient is φ = 1333666752.

The previous prime is 3485720369. The next prime is 3485720387. The reversal of 3485720380 is 830275843.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3485720387) 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, 3788367 + ... + 3789286.

It is an arithmetic number, because the mean of its divisors is an integer number (318261468).

Almost surely, 2^3485720380 is an apocalyptic number.

It is an amenable number.

3485720380 is an abundant number, since it is smaller than the sum of its proper divisors (4152554852).

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

3485720380 is a wasteful number, since it uses less digits than its factorization.

3485720380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577685 (or 7577683 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The square root of 3485720380 is about 59039.9896680208. The cubic root of 3485720380 is about 1516.2268459145.

The spelling of 3485720380 in words is "three billion, four hundred eighty-five million, seven hundred twenty thousand, three hundred eighty".