1533397996 has 24 divisors (see below), whose sum is σ = 2929459904. Its totient is φ = 698025600.

The previous prime is 1533397967. The next prime is 1533398003. The reversal of 1533397996 is 6997933351.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 198180 + ... + 205771.

Almost surely, 2^1533397996 is an apocalyptic number.

It is an amenable number.

1533397996 is a deficient number, since it is larger than the sum of its proper divisors (1396061908).

1533397996 is a wasteful number, since it uses less digits than its factorization.

1533397996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404041 (or 404039 counting only the distinct ones).

The product of its digits is 4133430, while the sum is 55.

The square root of 1533397996 is about 39158.6260739572. The cubic root of 1533397996 is about 1153.1477707927.

The spelling of 1533397996 in words is "one billion, five hundred thirty-three million, three hundred ninety-seven thousand, nine hundred ninety-six".