938889882 has 72 divisors (see below), whose sum is σ = 2370989556. Its totient is φ = 267732864.

The previous prime is 938889881. The next prime is 938889937. The reversal of 938889882 is 288988839.

It can be written as a sum of positive squares in 2 ways, for example, as 841058001 + 97831881 = 29001^2 + 9891^2 .

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938889881) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 839988 + ... + 841104.

Almost surely, 2^938889882 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 938889882, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1185494778).

938889882 is an abundant number, since it is smaller than the sum of its proper divisors (1432099674).

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

938889882 is a wasteful number, since it uses less digits than its factorization.

938889882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2092 (or 2082 counting only the distinct ones).

The product of its digits is 15925248, while the sum is 63.

The square root of 938889882 is about 30641.3100568497. The cubic root of 938889882 is about 979.2003340561.

The spelling of 938889882 in words is "nine hundred thirty-eight million, eight hundred eighty-nine thousand, eight hundred eighty-two".