1533921370 has 16 divisors (see below), whose sum is σ = 2825269920. Its totient is φ = 599299344.

The previous prime is 1533921329. The next prime is 1533921377. The reversal of 1533921370 is 731293351.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1533921377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1783200 + ... + 1784059.

It is an arithmetic number, because the mean of its divisors is an integer number (176579370).

Almost surely, 2^1533921370 is an apocalyptic number.

1533921370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1533921370 is a deficient number, since it is larger than the sum of its proper divisors (1291348550).

1533921370 is a wasteful number, since it uses less digits than its factorization.

1533921370 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567309.

The product of its (nonzero) digits is 17010, while the sum is 34.

The square root of 1533921370 is about 39165.3082459464. The cubic root of 1533921370 is about 1153.2789519802.

The spelling of 1533921370 in words is "one billion, five hundred thirty-three million, nine hundred twenty-one thousand, three hundred seventy".