424287481 has 2 divisors, whose sum is σ = 424287482. Its totient is φ = 424287480.

The previous prime is 424287449. The next prime is 424287491. The reversal of 424287481 is 184782424.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 334341225 + 89946256 = 18285^2 + 9484^2 .

It is a cyclic number.

It is not a de Polignac number, because 424287481 - 2⁵ = 424287449 is a prime.

It is a super-2 number, since 2×424287481² = 360039733066650722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (424287401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212143740 + 212143741.

It is an arithmetic number, because the mean of its divisors is an integer number (212143741).

Almost surely, 2^424287481 is an apocalyptic number.

It is an amenable number.

424287481 is a deficient number, since it is larger than the sum of its proper divisors (1).

424287481 is an equidigital number, since it uses as much as digits as its factorization.

424287481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 114688, while the sum is 40.

The square root of 424287481 is about 20598.2397548917. The cubic root of 424287481 is about 751.4269019166.

The spelling of 424287481 in words is "four hundred twenty-four million, two hundred eighty-seven thousand, four hundred eighty-one".