1335379881 has 32 divisors (see below), whose sum is σ = 2019580416. Its totient is φ = 777744000.

The previous prime is 1335379861. The next prime is 1335379889. The reversal of 1335379881 is 1889735331.

It is not a de Polignac number, because 1335379881 - 2¹¹ = 1335377833 is a prime.

It is a super-2 number, since 2×1335379881² = 3566478853159148322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1335379881.

It is not an unprimeable number, because it can be changed into a prime (1335379889) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 83286 + ... + 98016.

It is an arithmetic number, because the mean of its divisors is an integer number (63111888).

Almost surely, 2^1335379881 is an apocalyptic number.

1335379881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1335379881 is a deficient number, since it is larger than the sum of its proper divisors (684200535).

1335379881 is a wasteful number, since it uses less digits than its factorization.

1335379881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14853.

The product of its digits is 544320, while the sum is 48.

The square root of 1335379881 is about 36542.8499299110. The cubic root of 1335379881 is about 1101.2052577181.

The spelling of 1335379881 in words is "one billion, three hundred thirty-five million, three hundred seventy-nine thousand, eight hundred eighty-one".