380681540 has 12 divisors (see below), whose sum is σ = 799431276. Its totient is φ = 152272608.

The previous prime is 380681513. The next prime is 380681551. The reversal of 380681540 is 45186083.

It can be written as a sum of positive squares in 2 ways, for example, as 114404416 + 266277124 = 10696^2 + 16318^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 380681540.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9517019 + ... + 9517058.

It is an arithmetic number, because the mean of its divisors is an integer number (66619273).

Almost surely, 2^380681540 is an apocalyptic number.

It is an amenable number.

380681540 is an abundant number, since it is smaller than the sum of its proper divisors (418749736).

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

380681540 is a wasteful number, since it uses less digits than its factorization.

380681540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19034086 (or 19034084 counting only the distinct ones).

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

The square root of 380681540 is about 19511.0619905735. The cubic root of 380681540 is about 724.7484121101.

The spelling of 380681540 in words is "three hundred eighty million, six hundred eighty-one thousand, five hundred forty".