424021433 has 4 divisors (see below), whose sum is σ = 462568848. Its totient is φ = 385474020.

The previous prime is 424021427. The next prime is 424021453. The reversal of 424021433 is 334120424.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 424021433 - 2¹⁶ = 423955897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 424021399 and 424021408.

It is not an unprimeable number, because it can be changed into a prime (424021453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19273691 + ... + 19273712.

It is an arithmetic number, because the mean of its divisors is an integer number (115642212).

Almost surely, 2^424021433 is an apocalyptic number.

It is an amenable number.

424021433 is a deficient number, since it is larger than the sum of its proper divisors (38547415).

424021433 is a wasteful number, since it uses less digits than its factorization.

424021433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38547414.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 424021433 is about 20591.7807146444. The cubic root of 424021433 is about 751.2698091958.

Adding to 424021433 its reverse (334120424), we get a palindrome (758141857).

The spelling of 424021433 in words is "four hundred twenty-four million, twenty-one thousand, four hundred thirty-three".