424005923 has 4 divisors (see below), whose sum is σ = 462551928. Its totient is φ = 385459920.

The previous prime is 424005899. The next prime is 424005931. The reversal of 424005923 is 329500424.

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 424005923 - 2¹⁴ = 423989539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424005983) 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, 19272986 + ... + 19273007.

It is an arithmetic number, because the mean of its divisors is an integer number (115637982).

Almost surely, 2^424005923 is an apocalyptic number.

424005923 is a deficient number, since it is larger than the sum of its proper divisors (38546005).

424005923 is a wasteful number, since it uses less digits than its factorization.

424005923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38546004.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 424005923 is about 20591.4041046258. The cubic root of 424005923 is about 751.2606490167.

The spelling of 424005923 in words is "four hundred twenty-four million, five thousand, nine hundred twenty-three".