19350830 has 32 divisors (see below), whose sum is σ = 36741600. Its totient is φ = 7326592.

The previous prime is 19350829. The next prime is 19350833. The reversal of 19350830 is 3805391.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19350793 and 19350802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19350833) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14741 + ... + 15999.

It is an arithmetic number, because the mean of its divisors is an integer number (1148175).

Almost surely, 2^19350830 is an apocalyptic number.

19350830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19350830 is a deficient number, since it is larger than the sum of its proper divisors (17390770).

19350830 is a wasteful number, since it uses less digits than its factorization.

19350830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1348.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 19350830 is about 4398.9578311232. The cubic root of 19350830 is about 268.4725364260.

The spelling of 19350830 in words is "nineteen million, three hundred fifty thousand, eight hundred thirty".