2013333444 has 72 divisors (see below), whose sum is σ = 5217692480. Its totient is φ = 654236352.

The previous prime is 2013333437. The next prime is 2013333449. The reversal of 2013333444 is 4443333102.

It is a super-2 number, since 2×2013333444² = 8107023113457802272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2013333449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1124502 + ... + 1126290.

Almost surely, 2^2013333444 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2013333444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2608846240).

2013333444 is an abundant number, since it is smaller than the sum of its proper divisors (3204359036).

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

2013333444 is a wasteful number, since it uses less digits than its factorization.

2013333444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2569 (or 2564 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

The square root of 2013333444 is about 44870.1843544240. The cubic root of 2013333444 is about 1262.7146986956.

Adding to 2013333444 its reverse (4443333102), we get a palindrome (6456666546).

The spelling of 2013333444 in words is "two billion, thirteen million, three hundred thirty-three thousand, four hundred forty-four".