1352433240 has 128 divisors (see below), whose sum is σ = 4523904000. Its totient is φ = 359385984.

The previous prime is 1352433239. The next prime is 1352433289. The reversal of 1352433240 is 423342531.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 329521 + ... + 333599.

It is an arithmetic number, because the mean of its divisors is an integer number (35343000).

Almost surely, 2^1352433240 is an apocalyptic number.

1352433240 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 1352433240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2261952000).

1352433240 is an abundant number, since it is smaller than the sum of its proper divisors (3171470760).

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

1352433240 is a wasteful number, since it uses less digits than its factorization.

1352433240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4406 (or 4396 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

The square root of 1352433240 is about 36775.4434371633. The cubic root of 1352433240 is about 1105.8730608913.

Adding to 1352433240 its reverse (423342531), we get a palindrome (1775775771).

It can be divided in two parts, 13524 and 33240, that added together give a palindrome (46764).

The spelling of 1352433240 in words is "one billion, three hundred fifty-two million, four hundred thirty-three thousand, two hundred forty".