19329830 has 16 divisors (see below), whose sum is σ = 37470384. Its totient is φ = 7137120.

The previous prime is 19329829. The next prime is 19329839. The reversal of 19329830 is 3892391.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19329839) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 74216 + ... + 74475.

It is an arithmetic number, because the mean of its divisors is an integer number (2341899).

Almost surely, 2^19329830 is an apocalyptic number.

19329830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19329830 is a deficient number, since it is larger than the sum of its proper divisors (18140554).

19329830 is a wasteful number, since it uses less digits than its factorization.

19329830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148711.

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 19329830 is about 4396.5702541868. The cubic root of 19329830 is about 268.3753835913.

The spelling of 19329830 in words is "nineteen million, three hundred twenty-nine thousand, eight hundred thirty".