403407225 has 81 divisors (see below), whose sum is σ = 790073037. Its totient is φ = 196672320.

The previous prime is 403407217. The next prime is 403407239. The reversal of 403407225 is 522704304.

The square root of 403407225 is 20085.

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

It can be written as a sum of positive squares in 4 ways, for example, as 103978809 + 299428416 = 10197^2 + 17304^2 .

It is not a de Polignac number, because 403407225 - 2³ = 403407217 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3916524 + ... + 3916626.

Almost surely, 2^403407225 is an apocalyptic number.

403407225 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

403407225 is the 20085-th square number.

403407225 is the 10043-rd centered octagonal number.

It is an amenable number.

403407225 is a deficient number, since it is larger than the sum of its proper divisors (386665812).

403407225 is a wasteful number, since it uses less digits than its factorization.

403407225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248 (or 124 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 27.

The cubic root of 403407225 is about 738.8924416342.

The spelling of 403407225 in words is "four hundred three million, four hundred seven thousand, two hundred twenty-five".