403144164 has 18 divisors (see below), whose sum is σ = 1019058950. Its totient is φ = 134381376.

The previous prime is 403144153. The next prime is 403144187. The reversal of 403144164 is 461441304.

It can be written as a sum of positive squares in only one way, i.e., 401601600 + 1542564 = 20040^2 + 1242^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5599189 + ... + 5599260.

Almost surely, 2^403144164 is an apocalyptic number.

It is an amenable number.

403144164 is an abundant number, since it is smaller than the sum of its proper divisors (615914786).

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

403144164 is a wasteful number, since it uses less digits than its factorization.

403144164 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11198459 (or 11198454 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 403144164 is about 20078.4502390000. The cubic root of 403144164 is about 738.7317966432.

Adding to 403144164 its reverse (461441304), we get a palindrome (864585468).

The spelling of 403144164 in words is "four hundred three million, one hundred forty-four thousand, one hundred sixty-four".