403246561 has 9 divisors (see below), whose sum is σ = 413728401. Its totient is φ = 393025332.

The previous prime is 403246541. The next prime is 403246567. The reversal of 403246561 is 165642304.

The square root of 403246561 is 20081.

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

It is not a de Polignac number, because 403246561 - 2⁷ = 403246433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403246567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 863250 + ... + 863716.

Almost surely, 2^403246561 is an apocalyptic number.

403246561 is the 20081-st square number.

403246561 is the 10041-st centered octagonal number.

It is an amenable number.

403246561 is a deficient number, since it is larger than the sum of its proper divisors (10481840).

403246561 is an frugal number, since it uses more digits than its factorization.

403246561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020 (or 510 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The cubic root of 403246561 is about 738.7943363193.

Adding to 403246561 its reverse (165642304), we get a palindrome (568888865).

The spelling of 403246561 in words is "four hundred three million, two hundred forty-six thousand, five hundred sixty-one".