19425427 has 8 divisors (see below), whose sum is σ = 22228992. Its totient is φ = 16629000.

The previous prime is 19425421. The next prime is 19425449. The reversal of 19425427 is 72452491.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19425427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19425392 and 19425401.

It is not an unprimeable number, because it can be changed into a prime (19425421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6852 + ... + 9262.

It is an arithmetic number, because the mean of its divisors is an integer number (2778624).

Almost surely, 2^19425427 is an apocalyptic number.

19425427 is a deficient number, since it is larger than the sum of its proper divisors (2803565).

19425427 is a wasteful number, since it uses less digits than its factorization.

19425427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3569.

The product of its digits is 20160, while the sum is 34.

The square root of 19425427 is about 4407.4286154174. The cubic root of 19425427 is about 268.8170791996.

The spelling of 19425427 in words is "nineteen million, four hundred twenty-five thousand, four hundred twenty-seven".