4138489056 has 96 divisors (see below), whose sum is σ = 11791761408. Its totient is φ = 1263306240.

The previous prime is 4138489007. The next prime is 4138489067. The reversal of 4138489056 is 6509848314.

4138489056 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×4138489056² = 34254183333263542272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a junction number, because it is equal to n+sod(n) for n = 4138488996 and 4138489014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 145441 + ... + 171551.

It is an arithmetic number, because the mean of its divisors is an integer number (122830848).

Almost surely, 2^4138489056 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 4138489056, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5895880704).

4138489056 is an abundant number, since it is smaller than the sum of its proper divisors (7653272352).

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

4138489056 is a wasteful number, since it uses less digits than its factorization.

4138489056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26264 (or 26256 counting only the distinct ones).

The product of its (nonzero) digits is 829440, while the sum is 48.

The square root of 4138489056 is about 64331.0893425566. The cubic root of 4138489056 is about 1605.5134087966.

The spelling of 4138489056 in words is "four billion, one hundred thirty-eight million, four hundred eighty-nine thousand, fifty-six".