19235232420 has 96 divisors (see below), whose sum is σ = 57057436800. Its totient is φ = 4825073664.

The previous prime is 19235232391. The next prime is 19235232427. The reversal of 19235232420 is 2423253291.

It is not an unprimeable number, because it can be changed into a prime (19235232427) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2504346 + ... + 2512014.

It is an arithmetic number, because the mean of its divisors is an integer number (594348300).

Almost surely, 2^19235232420 is an apocalyptic number.

19235232420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19235232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28528718400).

19235232420 is an abundant number, since it is smaller than the sum of its proper divisors (37822204380).

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

19235232420 is a wasteful number, since it uses less digits than its factorization.

19235232420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10157 (or 10155 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 19235232420 in words is "nineteen billion, two hundred thirty-five million, two hundred thirty-two thousand, four hundred twenty".