1863761228 has 12 divisors (see below), whose sum is σ = 3727522512. Its totient is φ = 798754800.

The previous prime is 1863761227. The next prime is 1863761239. The reversal of 1863761228 is 8221673681.

1863761228 is an admirable number.

It is a hoax number, since the sum of its digits (44) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (1863761227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33281423 + ... + 33281478.

It is an arithmetic number, because the mean of its divisors is an integer number (310626876).

Almost surely, 2^1863761228 is an apocalyptic number.

It is an amenable number.

1863761228 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1863761228 is a wasteful number, since it uses less digits than its factorization.

1863761228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66562912 (or 66562910 counting only the distinct ones).

The product of its digits is 193536, while the sum is 44.

The square root of 1863761228 is about 43171.3009764589. The cubic root of 1863761228 is about 1230.6373474386.

The spelling of 1863761228 in words is "one billion, eight hundred sixty-three million, seven hundred sixty-one thousand, two hundred twenty-eight".