1335443940 has 72 divisors (see below), whose sum is σ = 4226983488. Its totient is φ = 340633920.

The previous prime is 1335443929. The next prime is 1335443953. The reversal of 1335443940 is 493445331.

1335443940 is a `hidden beast` number, since 133 + 54 + 439 + 40 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 1335443895 and 1335443904.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 157146 + ... + 165425.

It is an arithmetic number, because the mean of its divisors is an integer number (58708104).

Almost surely, 2^1335443940 is an apocalyptic number.

1335443940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1335443940 is an abundant number, since it is smaller than the sum of its proper divisors (2891539548).

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

1335443940 is a wasteful number, since it uses less digits than its factorization.

1335443940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322609 (or 322604 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

The square root of 1335443940 is about 36543.7264109724. The cubic root of 1335443940 is about 1101.2228659360. Note that the first 3 decimals are identical.

The spelling of 1335443940 in words is "one billion, three hundred thirty-five million, four hundred forty-three thousand, nine hundred forty".