434430649 has 9 divisors (see below), whose sum is σ = 458917167. Its totient is φ = 411190704.

The previous prime is 434430641. The next prime is 434430679. The reversal of 434430649 is 946034434.

The square root of 434430649 is 20843.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 123543225 + 310887424 = 11115^2 + 17632^2 .

It is not a de Polignac number, because 434430649 - 2³ = 434430641 is a prime.

It is a super-2 number, since 2×434430649² = 377459977581122402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (434430641) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 395469 + ... + 396565.

Almost surely, 2^434430649 is an apocalyptic number.

434430649 is the 20843-rd square number.

434430649 is the 10422-nd centered octagonal number.

It is an amenable number.

434430649 is a deficient number, since it is larger than the sum of its proper divisors (24486518).

434430649 is an frugal number, since it uses more digits than its factorization.

434430649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2232 (or 1116 counting only the distinct ones).

The product of its (nonzero) digits is 124416, while the sum is 37.

The cubic root of 434430649 is about 757.3677688927.

The spelling of 434430649 in words is "four hundred thirty-four million, four hundred thirty thousand, six hundred forty-nine".