438065652 has 12 divisors (see below), whose sum is σ = 1022153216. Its totient is φ = 146021880.

The previous prime is 438065651. The next prime is 438065671. The reversal of 438065652 is 256560834.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 438065652.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (438065651) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18252724 + ... + 18252747.

Almost surely, 2^438065652 is an apocalyptic number.

It is an amenable number.

438065652 is an abundant number, since it is smaller than the sum of its proper divisors (584087564).

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

438065652 is a wasteful number, since it uses less digits than its factorization.

438065652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36505478 (or 36505476 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 39.

The square root of 438065652 is about 20930.0179646363. The cubic root of 438065652 is about 759.4742739965.

The spelling of 438065652 in words is "four hundred thirty-eight million, sixty-five thousand, six hundred fifty-two".