403252447 has 16 divisors (see below), whose sum is σ = 459819360. Its totient is φ = 350566272.

The previous prime is 403252441. The next prime is 403252457. The reversal of 403252447 is 744252304.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 403252447 - 2⁷ = 403252319 is a prime.

It is a super-2 number, since 2×403252447² = 325225072022975618, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403252441) 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 15 ways as a sum of consecutive naturals, for example, 38013 + ... + 47449.

It is an arithmetic number, because the mean of its divisors is an integer number (28738710).

Almost surely, 2^403252447 is an apocalyptic number.

403252447 is a deficient number, since it is larger than the sum of its proper divisors (56566913).

403252447 is a wasteful number, since it uses less digits than its factorization.

403252447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 26880, while the sum is 31.

The square root of 403252447 is about 20081.1465559116. The cubic root of 403252447 is about 738.7979309127.

The spelling of 403252447 in words is "four hundred three million, two hundred fifty-two thousand, four hundred forty-seven".