403643049 has 8 divisors (see below), whose sum is σ = 566516640. Its totient is φ = 254932416.

The previous prime is 403643029. The next prime is 403643057. The reversal of 403643049 is 940346304.

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

It is not a de Polignac number, because 403643049 - 2⁵ = 403643017 is a prime.

It is a super-2 number, since 2×403643049² = 325855422012032802, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (403643029) 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 7 ways as a sum of consecutive naturals, for example, 3540672 + ... + 3540785.

It is an arithmetic number, because the mean of its divisors is an integer number (70814580).

Almost surely, 2^403643049 is an apocalyptic number.

It is an amenable number.

403643049 is a deficient number, since it is larger than the sum of its proper divisors (162873591).

403643049 is a wasteful number, since it uses less digits than its factorization.

403643049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7081479.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 403643049 is about 20090.8697920224. The cubic root of 403643049 is about 739.0363942932.

The spelling of 403643049 in words is "four hundred three million, six hundred forty-three thousand, forty-nine".