19119140 has 12 divisors (see below), whose sum is σ = 40150236. Its totient is φ = 7647648.

The previous prime is 19119103. The next prime is 19119151. The reversal of 19119140 is 4191191.

It can be written as a sum of positive squares in 2 ways, for example, as 12687844 + 6431296 = 3562^2 + 2536^2 .

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, 477959 + ... + 477998.

It is an arithmetic number, because the mean of its divisors is an integer number (3345853).

Almost surely, 2^19119140 is an apocalyptic number.

19119140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19119140 is an abundant number, since it is smaller than the sum of its proper divisors (21031096).

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

19119140 is a wasteful number, since it uses less digits than its factorization.

19119140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955966 (or 955964 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 26.

The square root of 19119140 is about 4372.5438819982. The cubic root of 19119140 is about 267.3967458949.

The spelling of 19119140 in words is "nineteen million, one hundred nineteen thousand, one hundred forty".