395489388 has 72 divisors (see below), whose sum is σ = 1078564032. Its totient is φ = 112461216.

The previous prime is 395489363. The next prime is 395489401. The reversal of 395489388 is 883984593.

It is a super-2 number, since 2×395489388² = 312823712041229088, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131995 + ... + 134957.

It is an arithmetic number, because the mean of its divisors is an integer number (14980056).

Almost surely, 2^395489388 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 395489388, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (539282016).

395489388 is an abundant number, since it is smaller than the sum of its proper divisors (683074644).

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

395489388 is a wasteful number, since it uses less digits than its factorization.

395489388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3211 (or 3202 counting only the distinct ones).

The product of its digits is 7464960, while the sum is 57.

The square root of 395489388 is about 19886.9149945385. The cubic root of 395489388 is about 734.0262843035.

The spelling of 395489388 in words is "three hundred ninety-five million, four hundred eighty-nine thousand, three hundred eighty-eight".