403230144 has 112 divisors (see below), whose sum is σ = 1131677696. Its totient is φ = 126489600.

The previous prime is 403230143. The next prime is 403230167. The reversal of 403230144 is 441032304.

It is a self number, because there is not a number n which added to its sum of digits gives 403230144.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (403230143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219309 + ... + 221139.

Almost surely, 2^403230144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 403230144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (565838848).

403230144 is an abundant number, since it is smaller than the sum of its proper divisors (728447552).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

403230144 is a wasteful number, since it uses less digits than its factorization.

403230144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1914 (or 1904 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 403230144 is about 20080.5912263559. The cubic root of 403230144 is about 738.7843102356.

Adding to 403230144 its reverse (441032304), we get a palindrome (844262448).

The spelling of 403230144 in words is "four hundred three million, two hundred thirty thousand, one hundred forty-four".