424320257 has 8 divisors (see below), whose sum is σ = 439559040. Its totient is φ = 409122000.

The previous prime is 424320241. The next prime is 424320287. The reversal of 424320257 is 752023424.

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

It is a cyclic number.

It is not a de Polignac number, because 424320257 - 2⁴ = 424320241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424320287) 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, 12038 + ... + 31520.

It is an arithmetic number, because the mean of its divisors is an integer number (54944880).

Almost surely, 2^424320257 is an apocalyptic number.

It is an amenable number.

424320257 is a deficient number, since it is larger than the sum of its proper divisors (15238783).

424320257 is a wasteful number, since it uses less digits than its factorization.

424320257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20263.

The product of its (nonzero) digits is 13440, while the sum is 29.

The square root of 424320257 is about 20599.0353414911. The cubic root of 424320257 is about 751.4462505384.

The spelling of 424320257 in words is "four hundred twenty-four million, three hundred twenty thousand, two hundred fifty-seven".