1863450344 has 16 divisors (see below), whose sum is σ = 3993108000. Its totient is φ = 798621552.

The previous prime is 1863450301. The next prime is 1863450349. The reversal of 1863450344 is 4430543681.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1863450298 and 1863450307.

It is not an unprimeable number, because it can be changed into a prime (1863450349) 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 3 ways as a sum of consecutive naturals, for example, 16637894 + ... + 16638005.

It is an arithmetic number, because the mean of its divisors is an integer number (249569250).

Almost surely, 2^1863450344 is an apocalyptic number.

1863450344 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1863450344 is an abundant number, since it is smaller than the sum of its proper divisors (2129657656).

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

1863450344 is a wasteful number, since it uses less digits than its factorization.

1863450344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33275912 (or 33275908 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 38.

The square root of 1863450344 is about 43167.7002398784. The cubic root of 1863450344 is about 1230.5689182984.

The spelling of 1863450344 in words is "one billion, eight hundred sixty-three million, four hundred fifty thousand, three hundred forty-four".