1533038380 has 36 divisors (see below), whose sum is σ = 3299889600. Its totient is φ = 598245760.

The previous prime is 1533038329. The next prime is 1533038383. The reversal of 1533038380 is 838303351.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (1533038383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10821 + ... + 56419.

It is an arithmetic number, because the mean of its divisors is an integer number (91663600).

Almost surely, 2^1533038380 is an apocalyptic number.

1533038380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1533038380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1649944800).

1533038380 is an abundant number, since it is smaller than the sum of its proper divisors (1766851220).

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

1533038380 is a wasteful number, since it uses less digits than its factorization.

1533038380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45690 (or 45647 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 1533038380 is about 39154.0340194979. The cubic root of 1533038380 is about 1153.0576174618.

The spelling of 1533038380 in words is "one billion, five hundred thirty-three million, thirty-eight thousand, three hundred eighty".