380442780628 has 12 divisors (see below), whose sum is σ = 665786527252. Its totient is φ = 190218058560.

The previous prime is 380442780593. The next prime is 380442780637. The reversal of 380442780628 is 826087244083.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 136118199364 + 244324581264 = 368942^2 + 494292^2 .

It is a congruent number.

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, 566553 + ... + 1040128.

Almost surely, 2^380442780628 is an apocalyptic number.

It is an amenable number.

380442780628 is a deficient number, since it is larger than the sum of its proper divisors (285343746624).

380442780628 is a wasteful number, since it uses less digits than its factorization.

380442780628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1665882 (or 1665880 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 52.

The spelling of 380442780628 in words is "three hundred eighty billion, four hundred forty-two million, seven hundred eighty thousand, six hundred twenty-eight".