403438145 has 8 divisors (see below), whose sum is σ = 528137280. Its totient is φ = 293409520.

The previous prime is 403438141. The next prime is 403438171. The reversal of 403438145 is 541834304.

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

It is not a de Polignac number, because 403438145 - 2² = 403438141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (403438141) 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, 3667565 + ... + 3667674.

It is an arithmetic number, because the mean of its divisors is an integer number (66017160).

Almost surely, 2^403438145 is an apocalyptic number.

It is an amenable number.

403438145 is a deficient number, since it is larger than the sum of its proper divisors (124699135).

403438145 is a wasteful number, since it uses less digits than its factorization.

403438145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7335255.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 403438145 is about 20085.7697139044. The cubic root of 403438145 is about 738.9113191433.

The spelling of 403438145 in words is "four hundred three million, four hundred thirty-eight thousand, one hundred forty-five".