380877615 has 12 divisors (see below), whose sum is σ = 660187944. Its totient is φ = 203134704.

The previous prime is 380877611. The next prime is 380877643. The reversal of 380877615 is 516778083.

It is not a de Polignac number, because 380877615 - 2² = 380877611 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 8463947 = 380877615 / (3 + 8 + 0 + 8 + 7 + 7 + 6 + 1 + 5).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380877611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4231929 + ... + 4232018.

It is an arithmetic number, because the mean of its divisors is an integer number (55015662).

Almost surely, 2^380877615 is an apocalyptic number.

380877615 is a deficient number, since it is larger than the sum of its proper divisors (279310329).

380877615 is a wasteful number, since it uses less digits than its factorization.

380877615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8463958 (or 8463955 counting only the distinct ones).

The product of its (nonzero) digits is 282240, while the sum is 45.

The square root of 380877615 is about 19516.0860574040. The cubic root of 380877615 is about 724.8728211320.

The spelling of 380877615 in words is "three hundred eighty million, eight hundred seventy-seven thousand, six hundred fifteen".