1878399303 has 8 divisors (see below), whose sum is σ = 2732217216. Its totient is φ = 1138423800.

The previous prime is 1878399287. The next prime is 1878399307. The reversal of 1878399303 is 3039938781.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1878399303 - 2⁴ = 1878399287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1878399307) 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 7 ways as a sum of consecutive naturals, for example, 28460563 + ... + 28460628.

It is an arithmetic number, because the mean of its divisors is an integer number (341527152).

Almost surely, 2^1878399303 is an apocalyptic number.

1878399303 is a deficient number, since it is larger than the sum of its proper divisors (853817913).

1878399303 is a wasteful number, since it uses less digits than its factorization.

1878399303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56921205.

The product of its (nonzero) digits is 979776, while the sum is 51.

The square root of 1878399303 is about 43340.5041848846. The cubic root of 1878399303 is about 1233.8507785819.

The spelling of 1878399303 in words is "one billion, eight hundred seventy-eight million, three hundred ninety-nine thousand, three hundred three".