1352133240 has 32 divisors (see below), whose sum is σ = 4056400080. Its totient is φ = 360568832.

The previous prime is 1352133127. The next prime is 1352133257. The reversal of 1352133240 is 423312531.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1352133240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5633769 + ... + 5634008.

Almost surely, 2^1352133240 is an apocalyptic number.

1352133240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352133240 is an abundant number, since it is smaller than the sum of its proper divisors (2704266840).

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

1352133240 is a wasteful number, since it uses less digits than its factorization.

1352133240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11267791 (or 11267787 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 24.

The square root of 1352133240 is about 36771.3644022084. The cubic root of 1352133240 is about 1105.7912857022.

Adding to 1352133240 its reverse (423312531), we get a palindrome (1775445771).

The spelling of 1352133240 in words is "one billion, three hundred fifty-two million, one hundred thirty-three thousand, two hundred forty".