19135040 has 28 divisors (see below), whose sum is σ = 45566076. Its totient is φ = 7653888.

The previous prime is 19135009. The next prime is 19135079. The reversal of 19135040 is 4053191.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10086976 + 9048064 = 3176^2 + 3008^2 .

It is a super-2 number, since 2×19135040² = 732299511603200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 19134997 and 19135015.

It is an unprimeable number.

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, 29579 + ... + 30218.

Almost surely, 2^19135040 is an apocalyptic number.

19135040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19135040 is an abundant number, since it is smaller than the sum of its proper divisors (26431036).

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

19135040 is an equidigital number, since it uses as much as digits as its factorization.

19135040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59814 (or 59804 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 19135040 is about 4374.3616677179. The cubic root of 19135040 is about 267.4708501733.

The spelling of 19135040 in words is "nineteen million, one hundred thirty-five thousand, forty".