403264081 has 6 divisors (see below), whose sum is σ = 443257346. Its totient is φ = 366603600.

The previous prime is 403264067. The next prime is 403264091. The reversal of 403264081 is 180462304.

It can be written as a sum of positive squares in only one way, i.e., 362559681 + 40704400 = 19041^2 + 6380^2 .

It is not a de Polignac number, because 403264081 - 2¹⁷ = 403133009 is a prime.

It is a super-2 number, since 2×403264081² = 325243838049549122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403264031) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1666260 + ... + 1666501.

Almost surely, 2^403264081 is an apocalyptic number.

It is an amenable number.

403264081 is a deficient number, since it is larger than the sum of its proper divisors (39993265).

403264081 is a wasteful number, since it uses less digits than its factorization.

403264081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3332783 (or 3332772 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

The square root of 403264081 is about 20081.4362285171. The cubic root of 403264081 is about 738.8050357197.

The spelling of 403264081 in words is "four hundred three million, two hundred sixty-four thousand, eighty-one".