424233409 has 2 divisors, whose sum is σ = 424233410. Its totient is φ = 424233408.

The previous prime is 424233391. The next prime is 424233497. The reversal of 424233409 is 904332424.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278789809 + 145443600 = 16697^2 + 12060^2 .

It is a cyclic number.

It is not a de Polignac number, because 424233409 - 2⁵ = 424233377 is a prime.

It is a super-2 number, since 2×424233409² = 359947970623522562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424233499) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212116704 + 212116705.

It is an arithmetic number, because the mean of its divisors is an integer number (212116705).

Almost surely, 2^424233409 is an apocalyptic number.

It is an amenable number.

424233409 is a deficient number, since it is larger than the sum of its proper divisors (1).

424233409 is an equidigital number, since it uses as much as digits as its factorization.

424233409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 31.

The square root of 424233409 is about 20596.9271737315. The cubic root of 424233409 is about 751.3949794714.

The spelling of 424233409 in words is "four hundred twenty-four million, two hundred thirty-three thousand, four hundred nine".