1352522440 has 16 divisors (see below), whose sum is σ = 3043175580. Its totient is φ = 541008960.

The previous prime is 1352522417. The next prime is 1352522447. The reversal of 1352522440 is 442252531.

It can be written as a sum of positive squares in 2 ways, for example, as 1352327076 + 195364 = 36774^2 + 442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1352522399 and 1352522408.

It is not an unprimeable number, because it can be changed into a prime (1352522447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16906491 + ... + 16906570.

Almost surely, 2^1352522440 is an apocalyptic number.

1352522440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352522440 is an abundant number, since it is smaller than the sum of its proper divisors (1690653140).

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

1352522440 is a wasteful number, since it uses less digits than its factorization.

1352522440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33813072 (or 33813068 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 1352522440 is about 36776.6561829648. The cubic root of 1352522440 is about 1105.8973730485.

Adding to 1352522440 its reverse (442252531), we get a palindrome (1794774971).

The spelling of 1352522440 in words is "one billion, three hundred fifty-two million, five hundred twenty-two thousand, four hundred forty".