1924427 has 4 divisors (see below), whose sum is σ = 1929096. Its totient is φ = 1919760.

The previous prime is 1924409. The next prime is 1924457. The reversal of 1924427 is 7244291.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1924427 - 2¹⁰ = 1923403 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1924427.

It is not an unprimeable number, because it can be changed into a prime (1924457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1649 + ... + 2562.

It is an arithmetic number, because the mean of its divisors is an integer number (482274).

2^1924427 is an apocalyptic number.

1924427 is a deficient number, since it is larger than the sum of its proper divisors (4669).

1924427 is an equidigital number, since it uses as much as digits as its factorization.

1924427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4668.

The product of its digits is 4032, while the sum is 29.

The square root of 1924427 is about 1387.2371823160. The cubic root of 1924427 is about 124.3847527347.

The spelling of 1924427 in words is "one million, nine hundred twenty-four thousand, four hundred twenty-seven".