380346561 has 24 divisors (see below), whose sum is σ = 655175040. Its totient is φ = 207890496.

The previous prime is 380346517. The next prime is 380346581. The reversal of 380346561 is 165643083.

It is not a de Polignac number, because 380346561 - 2⁷ = 380346433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (380346581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129796 + ... + 132693.

It is an arithmetic number, because the mean of its divisors is an integer number (27298960).

Almost surely, 2^380346561 is an apocalyptic number.

It is an amenable number.

380346561 is a deficient number, since it is larger than the sum of its proper divisors (274828479).

380346561 is a wasteful number, since it uses less digits than its factorization.

380346561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262525 (or 262522 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The square root of 380346561 is about 19502.4757659124. The cubic root of 380346561 is about 724.5357700306.

The spelling of 380346561 in words is "three hundred eighty million, three hundred forty-six thousand, five hundred sixty-one".