1878863020 has 24 divisors (see below), whose sum is σ = 4081669200. Its totient is φ = 725629632.

The previous prime is 1878863003. The next prime is 1878863029. The reversal of 1878863020 is 203688781.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1878863029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1619130 + ... + 1620289.

It is an arithmetic number, because the mean of its divisors is an integer number (170069550).

Almost surely, 2^1878863020 is an apocalyptic number.

1878863020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1878863020 is an abundant number, since it is smaller than the sum of its proper divisors (2202806180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1878863020 is a wasteful number, since it uses less digits than its factorization.

1878863020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239457 (or 3239455 counting only the distinct ones).

The product of its (nonzero) digits is 129024, while the sum is 43.

The square root of 1878863020 is about 43345.8535502532. The cubic root of 1878863020 is about 1233.9523030562.

The spelling of 1878863020 in words is "one billion, eight hundred seventy-eight million, eight hundred sixty-three thousand, twenty".