1538465828 has 24 divisors (see below), whose sum is σ = 2740620960. Its totient is φ = 755456960.

The previous prime is 1538465801. The next prime is 1538465833. The reversal of 1538465828 is 8285648351.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 300248 + ... + 305328.

It is an arithmetic number, because the mean of its divisors is an integer number (114192540).

Almost surely, 2^1538465828 is an apocalyptic number.

It is an amenable number.

1538465828 is a deficient number, since it is larger than the sum of its proper divisors (1202155132).

1538465828 is a wasteful number, since it uses less digits than its factorization.

1538465828 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6427 (or 6425 counting only the distinct ones).

The product of its digits is 1843200, while the sum is 50.

The square root of 1538465828 is about 39223.2817086995. The cubic root of 1538465828 is about 1154.4167461772.

The spelling of 1538465828 in words is "one billion, five hundred thirty-eight million, four hundred sixty-five thousand, eight hundred twenty-eight".