438336148 has 6 divisors (see below), whose sum is σ = 767088266. Its totient is φ = 219168072.

The previous prime is 438336133. The next prime is 438336149. The reversal of 438336148 is 841633834.

It can be written as a sum of positive squares in only one way, i.e., 375894544 + 62441604 = 19388^2 + 7902^2 .

It is a super-3 number, since 3×438336148³ (a number of 27 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 438336148.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438336149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54792015 + ... + 54792022.

Almost surely, 2^438336148 is an apocalyptic number.

It is an amenable number.

438336148 is a deficient number, since it is larger than the sum of its proper divisors (328752118).

438336148 is a wasteful number, since it uses less digits than its factorization.

438336148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109584041 (or 109584039 counting only the distinct ones).

The product of its digits is 165888, while the sum is 40.

The square root of 438336148 is about 20936.4788825628. The cubic root of 438336148 is about 759.6305614410.

The spelling of 438336148 in words is "four hundred thirty-eight million, three hundred thirty-six thousand, one hundred forty-eight".