38989812 has 12 divisors (see below), whose sum is σ = 90976256. Its totient is φ = 12996600.

The previous prime is 38989801. The next prime is 38989817. The reversal of 38989812 is 21898983.

It is a happy number.

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

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38989817) 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, 1624564 + ... + 1624587.

Almost surely, 2^38989812 is an apocalyptic number.

It is an amenable number.

38989812 is an abundant number, since it is smaller than the sum of its proper divisors (51986444).

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

38989812 is a wasteful number, since it uses less digits than its factorization.

38989812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3249158 (or 3249156 counting only the distinct ones).

The product of its digits is 248832, while the sum is 48.

The square root of 38989812 is about 6244.1822523049. The cubic root of 38989812 is about 339.0916121039.

It can be divided in two parts, 3898981 and 2, that added together give a palindrome (3898983).

The spelling of 38989812 in words is "thirty-eight million, nine hundred eighty-nine thousand, eight hundred twelve".