1114021388 has 6 divisors (see below), whose sum is σ = 1949537436. Its totient is φ = 557010692.

The previous prime is 1114021387. The next prime is 1114021393. The reversal of 1114021388 is 8831204111.

It is a self number, because there is not a number n which added to its sum of digits gives 1114021388.

It is not an unprimeable number, because it can be changed into a prime (1114021387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 139252670 + ... + 139252677.

It is an arithmetic number, because the mean of its divisors is an integer number (324922906).

Almost surely, 2^1114021388 is an apocalyptic number.

It is an amenable number.

1114021388 is a deficient number, since it is larger than the sum of its proper divisors (835516048).

1114021388 is a wasteful number, since it uses less digits than its factorization.

1114021388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 278505351 (or 278505349 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 29.

The square root of 1114021388 is about 33376.9589387649. The cubic root of 1114021388 is about 1036.6476709723.

Adding to 1114021388 its reverse (8831204111), we get a palindrome (9945225499).

The spelling of 1114021388 in words is "one billion, one hundred fourteen million, twenty-one thousand, three hundred eighty-eight".