424308649 has 4 divisors (see below), whose sum is σ = 434176336. Its totient is φ = 414440964.

The previous prime is 424308587. The next prime is 424308653. The reversal of 424308649 is 946803424.

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 424308649 - 2²¹ = 422211497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (424308679) 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, 4933779 + ... + 4933864.

It is an arithmetic number, because the mean of its divisors is an integer number (108544084).

Almost surely, 2^424308649 is an apocalyptic number.

It is an amenable number.

424308649 is a deficient number, since it is larger than the sum of its proper divisors (9867687).

424308649 is an equidigital number, since it uses as much as digits as its factorization.

424308649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9867686.

The product of its (nonzero) digits is 165888, while the sum is 40.

The square root of 424308649 is about 20598.7535787969. The cubic root of 424308649 is about 751.4393981139.

The spelling of 424308649 in words is "four hundred twenty-four million, three hundred eight thousand, six hundred forty-nine".