380648445 has 16 divisors (see below), whose sum is σ = 644863680. Its totient is φ = 191070464.

The previous prime is 380648423. The next prime is 380648447. The reversal of 380648445 is 544846083.

It is a cyclic number.

It is not a de Polignac number, because 380648445 - 2⁸ = 380648189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 380648397 and 380648406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380648447) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 746115 + ... + 746624.

It is an arithmetic number, because the mean of its divisors is an integer number (40303980).

Almost surely, 2^380648445 is an apocalyptic number.

It is an amenable number.

380648445 is a deficient number, since it is larger than the sum of its proper divisors (264215235).

380648445 is a wasteful number, since it uses less digits than its factorization.

380648445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492764.

The product of its (nonzero) digits is 368640, while the sum is 42.

The square root of 380648445 is about 19510.2138635126. The cubic root of 380648445 is about 724.7274092146.

The spelling of 380648445 in words is "three hundred eighty million, six hundred forty-eight thousand, four hundred forty-five".