1538268 has 12 divisors (see below), whose sum is σ = 3589320. Its totient is φ = 512752.

The previous prime is 1538267. The next prime is 1538281. The reversal of 1538268 is 8628351.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64083 + ... + 64106.

It is an arithmetic number, because the mean of its divisors is an integer number (299110).

2^1538268 is an apocalyptic number.

It is an amenable number.

1538268 is an abundant number, since it is smaller than the sum of its proper divisors (2051052).

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

1538268 is a wasteful number, since it uses less digits than its factorization.

1538268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128196 (or 128194 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 1538268 is about 1240.2693255902. The cubic root of 1538268 is about 115.4367262737.

It can be divided in two parts, 15 and 38268, that added together give a palindrome (38283).

The spelling of 1538268 in words is "one million, five hundred thirty-eight thousand, two hundred sixty-eight".