1333409481 has 12 divisors (see below), whose sum is σ = 1947677940. Its totient is φ = 878951040.

The previous prime is 1333409453. The next prime is 1333409513. The reversal of 1333409481 is 1849043331.

1333409481 is a `hidden beast` number, since 133 + 3 + 40 + 9 + 481 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 846810000 + 486599481 = 29100^2 + 22059^2 .

It is not a de Polignac number, because 1333409481 - 2¹⁸ = 1333147337 is a prime.

It is a super-2 number, since 2×1333409481² = 3555961688041378722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1333409281) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 831540 + ... + 833141.

It is an arithmetic number, because the mean of its divisors is an integer number (162306495).

Almost surely, 2^1333409481 is an apocalyptic number.

It is an amenable number.

1333409481 is a deficient number, since it is larger than the sum of its proper divisors (614268459).

1333409481 is a wasteful number, since it uses less digits than its factorization.

1333409481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664776 (or 1664773 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 1333409481 is about 36515.8798469926. The cubic root of 1333409481 is about 1100.6633687373.

The spelling of 1333409481 in words is "one billion, three hundred thirty-three million, four hundred nine thousand, four hundred eighty-one".