1138401422 has 48 divisors (see below), whose sum is σ = 1870192800. Its totient is φ = 518329152.

The previous prime is 1138401389. The next prime is 1138401443. The reversal of 1138401422 is 2241048311.

It is a super-2 number, since 2×1138401422² = 2591915595223244168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1138401391 and 1138401400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7640204 + ... + 7640352.

It is an arithmetic number, because the mean of its divisors is an integer number (38962350).

Almost surely, 2^1138401422 is an apocalyptic number.

1138401422 is a deficient number, since it is larger than the sum of its proper divisors (731791378).

1138401422 is a wasteful number, since it uses less digits than its factorization.

1138401422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345 (or 278 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

The square root of 1138401422 is about 33740.2048304393. The cubic root of 1138401422 is about 1044.1554104556.

Adding to 1138401422 its reverse (2241048311), we get a palindrome (3379449733).

The spelling of 1138401422 in words is "one billion, one hundred thirty-eight million, four hundred one thousand, four hundred twenty-two".