1863405052 has 24 divisors (see below), whose sum is σ = 3339395136. Its totient is φ = 909400128.

The previous prime is 1863404987. The next prime is 1863405077. The reversal of 1863405052 is 2505043681.

It is a junction number, because it is equal to n+sod(n) for n = 1863404999 and 1863405017.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56838 + ... + 83410.

It is an arithmetic number, because the mean of its divisors is an integer number (139141464).

Almost surely, 2^1863405052 is an apocalyptic number.

It is an amenable number.

1863405052 is a deficient number, since it is larger than the sum of its proper divisors (1475990084).

1863405052 is a wasteful number, since it uses less digits than its factorization.

1863405052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26997 (or 26995 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 1863405052 is about 43167.1756314911. The cubic root of 1863405052 is about 1230.5589483736.

The spelling of 1863405052 in words is "one billion, eight hundred sixty-three million, four hundred five thousand, fifty-two".