3898390608 has 90 divisors (see below), whose sum is σ = 12691339674. Its totient is φ = 1113823872.

The previous prime is 3898390597. The next prime is 3898390609. The reversal of 3898390608 is 8060938983.

It can be written as a sum of positive squares in only one way, i.e., 2694855744 + 1203534864 = 51912^2 + 34692^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3898390609) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 269191 + ... + 283302.

Almost surely, 2^3898390608 is an apocalyptic number.

It is an amenable number.

3898390608 is an abundant number, since it is smaller than the sum of its proper divisors (8792949066).

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

3898390608 is a wasteful number, since it uses less digits than its factorization.

3898390608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552521 (or 552505 counting only the distinct ones).

The product of its (nonzero) digits is 2239488, while the sum is 54.

The square root of 3898390608 is about 62437.0932058820. The cubic root of 3898390608 is about 1573.8443670937.

The spelling of 3898390608 in words is "three billion, eight hundred ninety-eight million, three hundred ninety thousand, six hundred eight".