403795320326281 has 9 divisors (see below), whose sum is σ = 437246103106119. Its totient is φ = 372733900703736.

The previous prime is 403795320326269. The next prime is 403795320326297. The reversal of 403795320326281 is 182623023597304.

The square root of 403795320326281 is 20094659.

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

It can be written as a sum of positive squares in only one way, i.e., 59733035551225 + 344062284775056 = 7728715^2 + 18548916^2 .

It is not a de Polignac number, because 403795320326281 - 2⁵ = 403795320326249 is a prime.

It is a super-2 number, since 2×403795320326281² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (403795320326201) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 260457696 + ... + 262003438.

It is a 1-persistent number, because it is pandigital, but 2⋅403795320326281 = 807590640652562 is not.

Almost surely, 2^{403795320326281} is an apocalyptic number.

403795320326281 is the 20094659-th square number.

403795320326281 is the 10047330-th centered octagonal number.

It is an amenable number.

403795320326281 is a deficient number, since it is larger than the sum of its proper divisors (33450782779838).

403795320326281 is an frugal number, since it uses more digits than its factorization.

403795320326281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3091512 (or 1545756 counting only the distinct ones).

The product of its (nonzero) digits is 13063680, while the sum is 55.

The spelling of 403795320326281 in words is "four hundred three trillion, seven hundred ninety-five billion, three hundred twenty million, three hundred twenty-six thousand, two hundred eighty-one".