19228494 has 32 divisors (see below), whose sum is σ = 41794560. Its totient is φ = 5875200.

The previous prime is 19228487. The next prime is 19228501. The reversal of 19228494 is 49482291.

It is an interprime number because it is at equal distance from previous prime (19228487) and next prime (19228501).

It is a super-3 number, since 3×19228494³ (a number of 23 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 814 + ... + 6254.

It is an arithmetic number, because the mean of its divisors is an integer number (1306080).

Almost surely, 2^19228494 is an apocalyptic number.

19228494 is an abundant number, since it is smaller than the sum of its proper divisors (22566066).

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

19228494 is a wasteful number, since it uses less digits than its factorization.

19228494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5496.

The product of its digits is 41472, while the sum is 39.

The square root of 19228494 is about 4385.0306726407. The cubic root of 19228494 is about 267.9055786035.

The spelling of 19228494 in words is "nineteen million, two hundred twenty-eight thousand, four hundred ninety-four".