19196220 has 24 divisors (see below), whose sum is σ = 53749584. Its totient is φ = 5118976.

The previous prime is 19196209. The next prime is 19196227. The reversal of 19196220 is 2269191.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19196227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 159909 + ... + 160028.

It is an arithmetic number, because the mean of its divisors is an integer number (2239566).

Almost surely, 2^19196220 is an apocalyptic number.

19196220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19196220 is an abundant number, since it is smaller than the sum of its proper divisors (34553364).

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

19196220 is a wasteful number, since it uses less digits than its factorization.

19196220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319949 (or 319947 counting only the distinct ones).

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

The square root of 19196220 is about 4381.3491072956. The cubic root of 19196220 is about 267.7556062646.

The spelling of 19196220 in words is "nineteen million, one hundred ninety-six thousand, two hundred twenty".