19348428 has 48 divisors (see below), whose sum is σ = 51399936. Its totient is φ = 5607360.

The previous prime is 19348421. The next prime is 19348457. The reversal of 19348428 is 82484391.

It is not an unprimeable number, because it can be changed into a prime (19348421) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151 + ... + 6222.

It is an arithmetic number, because the mean of its divisors is an integer number (1070832).

Almost surely, 2^19348428 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 19348428, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25699968).

19348428 is an abundant number, since it is smaller than the sum of its proper divisors (32051508).

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

19348428 is a wasteful number, since it uses less digits than its factorization.

19348428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6414 (or 6412 counting only the distinct ones).

The product of its digits is 55296, while the sum is 39.

The square root of 19348428 is about 4398.6848034384. The cubic root of 19348428 is about 268.4614275534.

The spelling of 19348428 in words is "nineteen million, three hundred forty-eight thousand, four hundred twenty-eight".