19080640 has 28 divisors (see below), whose sum is σ = 45436536. Its totient is φ = 7632128.

The previous prime is 19080631. The next prime is 19080653. The reversal of 19080640 is 4608091.

It is a junction number, because it is equal to n+sod(n) for n = 19080599 and 19080608.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29494 + ... + 30133.

Almost surely, 2^19080640 is an apocalyptic number.

19080640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19080640 is an abundant number, since it is smaller than the sum of its proper divisors (26355896).

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

19080640 is an equidigital number, since it uses as much as digits as its factorization.

19080640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59644 (or 59634 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 19080640 is about 4368.1391919214. The cubic root of 19080640 is about 267.2171406648.

The spelling of 19080640 in words is "nineteen million, eighty thousand, six hundred forty".