1538268384 has 48 divisors (see below), whose sum is σ = 4040184960. Its totient is φ = 512472960.

The previous prime is 1538268383. The next prime is 1538268427. The reversal of 1538268384 is 4838628351.

It is a tau number, because it is divible by the number of its divisors (48).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1538268383) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240589 + ... + 246899.

It is an arithmetic number, because the mean of its divisors is an integer number (84170520).

Almost surely, 2^1538268384 is an apocalyptic number.

It is an amenable number.

1538268384 is an abundant number, since it is smaller than the sum of its proper divisors (2501916576).

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

1538268384 is a wasteful number, since it uses less digits than its factorization.

1538268384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8863 (or 8855 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 48.

The square root of 1538268384 is about 39220.7647044267. The cubic root of 1538268384 is about 1154.3673587924.

The spelling of 1538268384 in words is "one billion, five hundred thirty-eight million, two hundred sixty-eight thousand, three hundred eighty-four".