19230020 has 24 divisors (see below), whose sum is σ = 40483800. Its totient is φ = 7672832.

The previous prime is 19230019. The next prime is 19230023. The reversal of 19230020 is 2003291.

It can be written as a sum of positive squares in 4 ways, for example, as 4129024 + 15100996 = 2032^2 + 3886^2 .

It is a super-3 number, since 3×19230020³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (19230023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9236 + ... + 11124.

It is an arithmetic number, because the mean of its divisors is an integer number (1686825).

Almost surely, 2^19230020 is an apocalyptic number.

19230020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19230020 is an abundant number, since it is smaller than the sum of its proper divisors (21253780).

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

19230020 is a wasteful number, since it uses less digits than its factorization.

19230020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2407 (or 2405 counting only the distinct ones).

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

The square root of 19230020 is about 4385.2046702520. The cubic root of 19230020 is about 267.9126655357.

The spelling of 19230020 in words is "nineteen million, two hundred thirty thousand, twenty".