19196040 has 64 divisors (see below), whose sum is σ = 57879360. Its totient is φ = 5093120.

The previous prime is 19195997. The next prime is 19196041. The reversal of 19196040 is 4069191.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 19195989 and 19196007.

It is not an unprimeable number, because it can be changed into a prime (19196041) 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, 41410 + ... + 41870.

It is an arithmetic number, because the mean of its divisors is an integer number (904365).

Almost surely, 2^19196040 is an apocalyptic number.

19196040 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 19196040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28939680).

19196040 is an abundant number, since it is smaller than the sum of its proper divisors (38683320).

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

19196040 is a wasteful number, since it uses less digits than its factorization.

19196040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 822 (or 818 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 19196040 is about 4381.3285656294. The cubic root of 19196040 is about 267.7547693609.

The spelling of 19196040 in words is "nineteen million, one hundred ninety-six thousand, forty".