19141928 has 16 divisors (see below), whose sum is σ = 38652180. Its totient is φ = 8834688.

The previous prime is 19141921. The next prime is 19141939. The reversal of 19141928 is 82914191.

It can be written as a sum of positive squares in 2 ways, for example, as 18472804 + 669124 = 4298^2 + 818^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (19141921) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91925 + ... + 92132.

Almost surely, 2^19141928 is an apocalyptic number.

It is an amenable number.

19141928 is an abundant number, since it is smaller than the sum of its proper divisors (19510252).

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

19141928 is a wasteful number, since it uses less digits than its factorization.

19141928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 184076 (or 184072 counting only the distinct ones).

The product of its digits is 5184, while the sum is 35.

The square root of 19141928 is about 4375.1489117515. The cubic root of 19141928 is about 267.5029399624.

The spelling of 19141928 in words is "nineteen million, one hundred forty-one thousand, nine hundred twenty-eight".