19448628 has 48 divisors (see below), whose sum is σ = 48121920. Its totient is φ = 6096384.

The previous prime is 19448617. The next prime is 19448659. The reversal of 19448628 is 82684491.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 19448628.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44700 + ... + 45132.

It is an arithmetic number, because the mean of its divisors is an integer number (1002540).

Almost surely, 2^19448628 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 19448628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24060960).

19448628 is an abundant number, since it is smaller than the sum of its proper divisors (28673292).

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

19448628 is a wasteful number, since it uses less digits than its factorization.

19448628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656 (or 654 counting only the distinct ones).

The product of its digits is 110592, while the sum is 42.

The square root of 19448628 is about 4410.0598635393. The cubic root of 19448628 is about 268.9240582927.

The spelling of 19448628 in words is "nineteen million, four hundred forty-eight thousand, six hundred twenty-eight".