19120427 has 8 divisors (see below), whose sum is σ = 20330352. Its totient is φ = 17920000.

The previous prime is 19120421. The next prime is 19120447. The reversal of 19120427 is 72402191.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 19120427 - 2¹⁰ = 19119403 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19120396 and 19120405.

It is not an unprimeable number, because it can be changed into a prime (19120421) 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 7 ways as a sum of consecutive naturals, for example, 2027 + ... + 6507.

It is an arithmetic number, because the mean of its divisors is an integer number (2541294).

Almost surely, 2^19120427 is an apocalyptic number.

19120427 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

19120427 is a deficient number, since it is larger than the sum of its proper divisors (1209925).

19120427 is a wasteful number, since it uses less digits than its factorization.

19120427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4749.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 19120427 is about 4372.6910478560. The cubic root of 19120427 is about 267.4027456747.

The spelling of 19120427 in words is "nineteen million, one hundred twenty thousand, four hundred twenty-seven".