380641580 has 48 divisors (see below), whose sum is σ = 881054496. Its totient is φ = 136980480.

The previous prime is 380641571. The next prime is 380641589. The reversal of 380641580 is 85146083.

It is an interprime number because it is at equal distance from previous prime (380641571) and next prime (380641589).

It is a self number, because there is not a number n which added to its sum of digits gives 380641580.

It is not an unprimeable number, because it can be changed into a prime (380641589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12422 + ... + 30258.

It is an arithmetic number, because the mean of its divisors is an integer number (18355302).

Almost surely, 2^380641580 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 380641580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (440527248).

380641580 is an abundant number, since it is smaller than the sum of its proper divisors (500412916).

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

380641580 is a wasteful number, since it uses less digits than its factorization.

380641580 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17954 (or 17952 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 380641580 is about 19510.0379292302. The cubic root of 380641580 is about 724.7230523654.

The spelling of 380641580 in words is "three hundred eighty million, six hundred forty-one thousand, five hundred eighty".