19442226 has 8 divisors (see below), whose sum is σ = 38884464. Its totient is φ = 6480740.

The previous prime is 19442191. The next prime is 19442231. The reversal of 19442226 is 62224491.

It is a sphenic number, since it is the product of 3 distinct primes.

19442226 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 19442193 and 19442202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1620180 + ... + 1620191.

It is an arithmetic number, because the mean of its divisors is an integer number (4860558).

Almost surely, 2^19442226 is an apocalyptic number.

19442226 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

19442226 is a wasteful number, since it uses less digits than its factorization.

19442226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3240376.

The product of its digits is 6912, while the sum is 30.

The square root of 19442226 is about 4409.3339633101. Note that the first 3 decimals coincide. The cubic root of 19442226 is about 268.8945473719.

The spelling of 19442226 in words is "nineteen million, four hundred forty-two thousand, two hundred twenty-six".