878382045 has 24 divisors (see below), whose sum is σ = 1538232696. Its totient is φ = 463638528.

The previous prime is 878382041. The next prime is 878382049. The reversal of 878382045 is 540283878.

It is an interprime number because it is at equal distance from previous prime (878382041) and next prime (878382049).

It can be written as a sum of positive squares in 4 ways, for example, as 311275449 + 567106596 = 17643^2 + 23814^2 .

It is not a de Polignac number, because 878382045 - 2² = 878382041 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (878382041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96252 + ... + 104981.

It is an arithmetic number, because the mean of its divisors is an integer number (64093029).

Almost surely, 2^878382045 is an apocalyptic number.

It is an amenable number.

878382045 is a deficient number, since it is larger than the sum of its proper divisors (659850651).

878382045 is a wasteful number, since it uses less digits than its factorization.

878382045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201341 (or 201338 counting only the distinct ones).

The product of its (nonzero) digits is 430080, while the sum is 45.

The square root of 878382045 is about 29637.5107760419. The cubic root of 878382045 is about 957.6963155290.

The spelling of 878382045 in words is "eight hundred seventy-eight million, three hundred eighty-two thousand, forty-five".