19247228 has 144 divisors (see below), whose sum is σ = 50050560. Its totient is φ = 6272640.

The previous prime is 19247227. The next prime is 19247237. The reversal of 19247228 is 82274291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19247227) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 836825 + ... + 836847.

Almost surely, 2^19247228 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19247228, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25025280).

19247228 is an abundant number, since it is smaller than the sum of its proper divisors (30803332).

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

19247228 is a wasteful number, since it uses less digits than its factorization.

19247228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88 (or 75 counting only the distinct ones).

The product of its digits is 16128, while the sum is 35.

The square root of 19247228 is about 4387.1662836049. The cubic root of 19247228 is about 267.9925556705.

It can be divided in two parts, 1924722 and 8, that multiplied together give a square (15397776 = 3924²).

The spelling of 19247228 in words is "nineteen million, two hundred forty-seven thousand, two hundred twenty-eight".