1352435440 has 40 divisors (see below), whose sum is σ = 3154516848. Its totient is φ = 539235840.

The previous prime is 1352435417. The next prime is 1352435473. The reversal of 1352435440 is 445342531.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1966 + ... + 52045.

Almost surely, 2^1352435440 is an apocalyptic number.

1352435440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1352435440 is an abundant number, since it is smaller than the sum of its proper divisors (1802081408).

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

1352435440 is a wasteful number, since it uses less digits than its factorization.

1352435440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54337 (or 54331 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

The square root of 1352435440 is about 36775.4733484152. The cubic root of 1352435440 is about 1105.8736605314.

Adding to 1352435440 its reverse (445342531), we get a palindrome (1797777971).

The spelling of 1352435440 in words is "one billion, three hundred fifty-two million, four hundred thirty-five thousand, four hundred forty".