380243045 has 32 divisors (see below), whose sum is σ = 563764992. Its totient is φ = 239749632.

The previous prime is 380243021. The next prime is 380243047. The reversal of 380243045 is 540342083.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-380243045 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 380242999 and 380243017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380243047) 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 31 ways as a sum of consecutive naturals, for example, 127289 + ... + 130241.

It is an arithmetic number, because the mean of its divisors is an integer number (17617656).

Almost surely, 2^380243045 is an apocalyptic number.

380243045 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

380243045 is a deficient number, since it is larger than the sum of its proper divisors (183521947).

380243045 is a wasteful number, since it uses less digits than its factorization.

380243045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3261.

The product of its (nonzero) digits is 11520, while the sum is 29.

The square root of 380243045 is about 19499.8216658512. The cubic root of 380243045 is about 724.4700336227.

The spelling of 380243045 in words is "three hundred eighty million, two hundred forty-three thousand, forty-five".