8138488 has 8 divisors (see below), whose sum is σ = 15259680. Its totient is φ = 4069240.

The previous prime is 8138477. The next prime is 8138489. The reversal of 8138488 is 8848318.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×8138488² = 132469973852288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8138488.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8138489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508648 + ... + 508663.

It is an arithmetic number, because the mean of its divisors is an integer number (1907460).

Almost surely, 2^8138488 is an apocalyptic number.

It is an amenable number.

8138488 is a deficient number, since it is larger than the sum of its proper divisors (7121192).

8138488 is a wasteful number, since it uses less digits than its factorization.

8138488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1017317 (or 1017313 counting only the distinct ones).

The product of its digits is 49152, while the sum is 40.

The square root of 8138488 is about 2852.8035333685. The cubic root of 8138488 is about 201.1474706319.

The spelling of 8138488 in words is "eight million, one hundred thirty-eight thousand, four hundred eighty-eight".