19300040 has 16 divisors (see below), whose sum is σ = 43425180. Its totient is φ = 7720000.

The previous prime is 19300031. The next prime is 19300069. The reversal of 19300040 is 4000391.

It can be written as a sum of positive squares in 2 ways, for example, as 16630084 + 2669956 = 4078^2 + 1634^2 .

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 19299991 and 19300018.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 241211 + ... + 241290.

Almost surely, 2^19300040 is an apocalyptic number.

19300040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19300040 is an abundant number, since it is smaller than the sum of its proper divisors (24125140).

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

19300040 is a wasteful number, since it uses less digits than its factorization.

19300040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 482512 (or 482508 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 19300040 is about 4393.1810798099. The cubic root of 19300040 is about 268.2374445736.

The spelling of 19300040 in words is "nineteen million, three hundred thousand, forty".