424402403 has 4 divisors (see below), whose sum is σ = 427642248. Its totient is φ = 421162560.

The previous prime is 424402393. The next prime is 424402409. The reversal of 424402403 is 304204424.

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 424402403 - 2⁴ = 424402387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424402409) 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, 1619726 + ... + 1619987.

It is an arithmetic number, because the mean of its divisors is an integer number (106910562).

Almost surely, 2^424402403 is an apocalyptic number.

424402403 is a deficient number, since it is larger than the sum of its proper divisors (3239845).

424402403 is a wasteful number, since it uses less digits than its factorization.

424402403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3239844.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 424402403 is about 20601.0291733204. The cubic root of 424402403 is about 751.4947393231.

Adding to 424402403 its reverse (304204424), we get a palindrome (728606827).

The spelling of 424402403 in words is "four hundred twenty-four million, four hundred two thousand, four hundred three".