434343621 has 8 divisors (see below), whose sum is σ = 581379264. Its totient is φ = 288435200.

The previous prime is 434343619. The next prime is 434343631. The reversal of 434343621 is 126343434.

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 434343621 - 2¹ = 434343619 is a prime.

It is a super-2 number, since 2×434343621² = 377308762206783282, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (434343631) 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, 280905 + ... + 282446.

It is an arithmetic number, because the mean of its divisors is an integer number (72672408).

Almost surely, 2^434343621 is an apocalyptic number.

It is an amenable number.

434343621 is a deficient number, since it is larger than the sum of its proper divisors (147035643).

434343621 is a wasteful number, since it uses less digits than its factorization.

434343621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563611.

The product of its digits is 20736, while the sum is 30.

The square root of 434343621 is about 20840.9121921283. The cubic root of 434343621 is about 757.3171918871.

The spelling of 434343621 in words is "four hundred thirty-four million, three hundred forty-three thousand, six hundred twenty-one".