1863476140 has 24 divisors (see below), whose sum is σ = 4019066352. Its totient is φ = 725244480.

The previous prime is 1863476137. The next prime is 1863476221. The reversal of 1863476140 is 416743681.

It is a junction number, because it is equal to n+sod(n) for n = 1863476093 and 1863476102.

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, 1258366 + ... + 1259845.

It is an arithmetic number, because the mean of its divisors is an integer number (167461098).

Almost surely, 2^1863476140 is an apocalyptic number.

1863476140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1863476140 is an abundant number, since it is smaller than the sum of its proper divisors (2155590212).

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

1863476140 is a wasteful number, since it uses less digits than its factorization.

1863476140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2518257 (or 2518255 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 1863476140 is about 43167.9990270571. Note that the first 3 decimals coincide. The cubic root of 1863476140 is about 1230.5745965839.

The spelling of 1863476140 in words is "one billion, eight hundred sixty-three million, four hundred seventy-six thousand, one hundred forty".