19134980 has 12 divisors (see below), whose sum is σ = 40183500. Its totient is φ = 7653984.

The previous prime is 19134977. The next prime is 19134989. The reversal of 19134980 is 8943191.

It can be written as a sum of positive squares in 2 ways, for example, as 9388096 + 9746884 = 3064^2 + 3122^2 .

It is a super-2 number, since 2×19134980² = 732294919200800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 19134980.

It is not an unprimeable number, because it can be changed into a prime (19134989) 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 3 ways as a sum of consecutive naturals, for example, 478355 + ... + 478394.

It is an arithmetic number, because the mean of its divisors is an integer number (3348625).

Almost surely, 2^19134980 is an apocalyptic number.

19134980 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19134980 is an abundant number, since it is smaller than the sum of its proper divisors (21048520).

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

19134980 is a wasteful number, since it uses less digits than its factorization.

19134980 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 956758 (or 956756 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 35.

The square root of 19134980 is about 4374.3548095691. The cubic root of 19134980 is about 267.4705706116.

The spelling of 19134980 in words is "nineteen million, one hundred thirty-four thousand, nine hundred eighty".