1335042440 has 32 divisors (see below), whose sum is σ = 3060526680. Its totient is φ = 523940352.

The previous prime is 1335042439. The next prime is 1335042479. The reversal of 1335042440 is 442405331.

It can be written as a sum of positive squares in 4 ways, for example, as 1200899716 + 134142724 = 34654^2 + 11582^2 .

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, 312749 + ... + 316988.

Almost surely, 2^1335042440 is an apocalyptic number.

1335042440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1335042440 is an abundant number, since it is smaller than the sum of its proper divisors (1725484240).

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

1335042440 is a wasteful number, since it uses less digits than its factorization.

1335042440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 629801 (or 629797 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 26.

The square root of 1335042440 is about 36538.2325790397. The cubic root of 1335042440 is about 1101.1124943248.

Adding to 1335042440 its reverse (442405331), we get a palindrome (1777447771).

The spelling of 1335042440 in words is "one billion, three hundred thirty-five million, forty-two thousand, four hundred forty".