19428080 has 40 divisors (see below), whose sum is σ = 51624672. Its totient is φ = 6660864.

The previous prime is 19428067. The next prime is 19428083. The reversal of 19428080 is 8082491.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19428083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16787 + ... + 17906.

Almost surely, 2^19428080 is an apocalyptic number.

19428080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19428080 is an abundant number, since it is smaller than the sum of its proper divisors (32196592).

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

19428080 is a wasteful number, since it uses less digits than its factorization.

19428080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34713 (or 34707 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 19428080 is about 4407.7295742820. The cubic root of 19428080 is about 268.8293164123.

The spelling of 19428080 in words is "nineteen million, four hundred twenty-eight thousand, eighty".