1355444412 has 24 divisors (see below), whose sum is σ = 3614518656. Its totient is φ = 387269808.

The previous prime is 1355444411. The next prime is 1355444449. The reversal of 1355444412 is 2144445531.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1355444411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8068038 + ... + 8068205.

It is an arithmetic number, because the mean of its divisors is an integer number (150604944).

Almost surely, 2^1355444412 is an apocalyptic number.

1355444412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1355444412 is an abundant number, since it is smaller than the sum of its proper divisors (2259074244).

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

1355444412 is a wasteful number, since it uses less digits than its factorization.

1355444412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16136257 (or 16136255 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

The square root of 1355444412 is about 36816.3606566429. The cubic root of 1355444412 is about 1106.6931890307.

Adding to 1355444412 its reverse (2144445531), we get a palindrome (3499889943).

The spelling of 1355444412 in words is "one billion, three hundred fifty-five million, four hundred forty-four thousand, four hundred twelve".