403041561 has 16 divisors (see below), whose sum is σ = 584041920. Its totient is φ = 245747520.

The previous prime is 403041557. The next prime is 403041563. The reversal of 403041561 is 165140304.

It is not a de Polignac number, because 403041561 - 2² = 403041557 is a prime.

It is not an unprimeable number, because it can be changed into a prime (403041563) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43155 + ... + 51656.

It is an arithmetic number, because the mean of its divisors is an integer number (36502620).

Almost surely, 2^403041561 is an apocalyptic number.

It is an amenable number.

403041561 is a deficient number, since it is larger than the sum of its proper divisors (181000359).

403041561 is a wasteful number, since it uses less digits than its factorization.

403041561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94936.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 403041561 is about 20075.8950236347. The cubic root of 403041561 is about 738.6691205284.

Adding to 403041561 its reverse (165140304), we get a palindrome (568181865).

The spelling of 403041561 in words is "four hundred three million, forty-one thousand, five hundred sixty-one".