1438383311 has 8 divisors (see below), whose sum is σ = 1525255920. Its totient is φ = 1351762048.

The previous prime is 1438383307. The next prime is 1438383341. The reversal of 1438383311 is 1133838341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1438383311 - 2² = 1438383307 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1438383301) 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, 50981 + ... + 73998.

It is an arithmetic number, because the mean of its divisors is an integer number (190656990).

Almost surely, 2^1438383311 is an apocalyptic number.

1438383311 is a deficient number, since it is larger than the sum of its proper divisors (86872609).

1438383311 is a wasteful number, since it uses less digits than its factorization.

1438383311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125673.

The product of its digits is 20736, while the sum is 35.

The square root of 1438383311 is about 37926.0241918396. The cubic root of 1438383311 is about 1128.8204756859.

The spelling of 1438383311 in words is "one billion, four hundred thirty-eight million, three hundred eighty-three thousand, three hundred eleven".