19090146 has 8 divisors (see below), whose sum is σ = 38180304. Its totient is φ = 6363380.

The previous prime is 19090139. The next prime is 19090147. The reversal of 19090146 is 64109091.

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

19090146 is an admirable number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (19090147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1590840 + ... + 1590851.

It is an arithmetic number, because the mean of its divisors is an integer number (4772538).

Almost surely, 2^19090146 is an apocalyptic number.

19090146 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.

19090146 is a wasteful number, since it uses less digits than its factorization.

19090146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3181696.

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

The square root of 19090146 is about 4369.2271627829. The cubic root of 19090146 is about 267.2615092747.

The spelling of 19090146 in words is "nineteen million, ninety thousand, one hundred forty-six".