19420196 has 6 divisors (see below), whose sum is σ = 33985350. Its totient is φ = 9710096.

The previous prime is 19420189. The next prime is 19420199. The reversal of 19420196 is 69102491.

It can be written as a sum of positive squares in only one way, i.e., 12503296 + 6916900 = 3536^2 + 2630^2 .

It is not an unprimeable number, because it can be changed into a prime (19420199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2427521 + ... + 2427528.

It is an arithmetic number, because the mean of its divisors is an integer number (5664225).

Almost surely, 2^19420196 is an apocalyptic number.

It is an amenable number.

19420196 is a deficient number, since it is larger than the sum of its proper divisors (14565154).

19420196 is a wasteful number, since it uses less digits than its factorization.

19420196 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4855053 (or 4855051 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 19420196 is about 4406.8351455438. The cubic root of 19420196 is about 268.7929474541.

The spelling of 19420196 in words is "nineteen million, four hundred twenty thousand, one hundred ninety-six".