939988420900 has 27 divisors (see below), whose sum is σ = 2039795912371. Its totient is φ = 375991490240.

The previous prime is 939988420879. The next prime is 939988420907. The reversal of 939988420900 is 9024889939.

The square root of 939988420900 is 969530.

It is a perfect power (a square), and thus also a powerful number.

939988420900 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 86345471716 + 853642949184 = 293846^2 + 923928^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939988420907) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 9646824 + ... + 9743776.

Almost surely, 2^939988420900 is an apocalyptic number.

939988420900 is the 969530-th square number.

It is an amenable number.

939988420900 is an abundant number, since it is smaller than the sum of its proper divisors (1099807491471).

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

939988420900 is an frugal number, since it uses more digits than its factorization.

939988420900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193920 (or 96960 counting only the distinct ones).

The product of its (nonzero) digits is 10077696, while the sum is 61.

The spelling of 939988420900 in words is "nine hundred thirty-nine billion, nine hundred eighty-eight million, four hundred twenty thousand, nine hundred".