1138963772 has 12 divisors (see below), whose sum is σ = 2079847056. Its totient is φ = 544721760.

The previous prime is 1138963729. The next prime is 1138963801. The reversal of 1138963772 is 2773698311.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6189929 + ... + 6190112.

It is an arithmetic number, because the mean of its divisors is an integer number (173320588).

Almost surely, 2^1138963772 is an apocalyptic number.

It is an amenable number.

1138963772 is a deficient number, since it is larger than the sum of its proper divisors (940883284).

1138963772 is a wasteful number, since it uses less digits than its factorization.

1138963772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12380068 (or 12380066 counting only the distinct ones).

The product of its digits is 381024, while the sum is 47.

The square root of 1138963772 is about 33748.5373312682. The cubic root of 1138963772 is about 1044.3273135367.

The spelling of 1138963772 in words is "one billion, one hundred thirty-eight million, nine hundred sixty-three thousand, seven hundred seventy-two".