19028940 has 48 divisors (see below), whose sum is σ = 60893952. Its totient is φ = 4349376.

The previous prime is 19028927. The next prime is 19028951. The reversal of 19028940 is 4982091.

It is a plaindrome in base 16.

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, 22234 + ... + 23073.

It is an arithmetic number, because the mean of its divisors is an integer number (1268624).

Almost surely, 2^19028940 is an apocalyptic number.

19028940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19028940 is an abundant number, since it is smaller than the sum of its proper divisors (41865012).

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

19028940 is a wasteful number, since it uses less digits than its factorization.

19028940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45326 (or 45324 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 19028940 is about 4362.2173260854. The cubic root of 19028940 is about 266.9755760458.

The spelling of 19028940 in words is "nineteen million, twenty-eight thousand, nine hundred forty".