1533343240 has 128 divisors (see below), whose sum is σ = 4114696320. Its totient is φ = 506880000.

The previous prime is 1533343223. The next prime is 1533343247. The reversal of 1533343240 is 423433351.

It is a super-2 number, since 2×1533343240² = 4702282983307395200, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1533343199 and 1533343208.

It is not an unprimeable number, because it can be changed into a prime (1533343247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 381240 + ... + 385240.

It is an arithmetic number, because the mean of its divisors is an integer number (32146065).

Almost surely, 2^1533343240 is an apocalyptic number.

1533343240 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 1533343240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2057348160).

1533343240 is an abundant number, since it is smaller than the sum of its proper divisors (2581353080).

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

1533343240 is a wasteful number, since it uses less digits than its factorization.

1533343240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4103 (or 4099 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

The square root of 1533343240 is about 39157.9269114186. The cubic root of 1533343240 is about 1153.1340447388.

Adding to 1533343240 its reverse (423433351), we get a palindrome (1956776591).

The spelling of 1533343240 in words is "one billion, five hundred thirty-three million, three hundred forty-three thousand, two hundred forty".