1138433305 has 16 divisors (see below), whose sum is σ = 1493144064. Its totient is φ = 829520640.

The previous prime is 1138433297. The next prime is 1138433311. The reversal of 1138433305 is 5033348311.

It is not a de Polignac number, because 1138433305 - 2³ = 1138433297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 213387 + ... + 218656.

It is an arithmetic number, because the mean of its divisors is an integer number (93321504).

Almost surely, 2^1138433305 is an apocalyptic number.

It is an amenable number.

1138433305 is a deficient number, since it is larger than the sum of its proper divisors (354710759).

1138433305 is a wasteful number, since it uses less digits than its factorization.

1138433305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432096.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 1138433305 is about 33740.6773049979. The cubic root of 1138433305 is about 1044.1651581876.

The spelling of 1138433305 in words is "one billion, one hundred thirty-eight million, four hundred thirty-three thousand, three hundred five".