19080090 has 32 divisors (see below), whose sum is σ = 50880960. Its totient is φ = 5087952.

The previous prime is 19080079. The next prime is 19080091. The reversal of 19080090 is 9008091.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (19080091) 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 15 ways as a sum of consecutive naturals, for example, 35064 + ... + 35603.

It is an arithmetic number, because the mean of its divisors is an integer number (1590030).

Almost surely, 2^19080090 is an apocalyptic number.

19080090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19080090 is an abundant number, since it is smaller than the sum of its proper divisors (31800870).

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

19080090 is a wasteful number, since it uses less digits than its factorization.

19080090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70683 (or 70677 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 19080090 is about 4368.0762355985. The cubic root of 19080090 is about 267.2145731262.

The spelling of 19080090 in words is "nineteen million, eighty thousand, ninety".