403643045 has 8 divisors (see below), whose sum is σ = 521631096. Its totient is φ = 298074816.

The previous prime is 403643029. The next prime is 403643057. The reversal of 403643045 is 540346304.

It can be written as a sum of positive squares in 4 ways, for example, as 516961 + 403126084 = 719^2 + 20078^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 403643045 - 2⁴ = 403643029 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 403642999 and 403643017.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3104882 + ... + 3105011.

It is an arithmetic number, because the mean of its divisors is an integer number (65203887).

Almost surely, 2^403643045 is an apocalyptic number.

It is an amenable number.

403643045 is a deficient number, since it is larger than the sum of its proper divisors (117988051).

403643045 is a wasteful number, since it uses less digits than its factorization.

403643045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6209911.

The product of its (nonzero) digits is 17280, while the sum is 29.

The square root of 403643045 is about 20090.8696924747. The cubic root of 403643045 is about 739.0363918520.

Adding to 403643045 its reverse (540346304), we get a palindrome (943989349).

The spelling of 403643045 in words is "four hundred three million, six hundred forty-three thousand, forty-five".