1138288046 has 36 divisors (see below), whose sum is σ = 1994928984. Its totient is φ = 477179640.

The previous prime is 1138288037. The next prime is 1138288069. The reversal of 1138288046 is 6408828311.

It is a junction number, because it is equal to n+sod(n) for n = 1138287994 and 1138288012.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8962835 + ... + 8962961.

It is an arithmetic number, because the mean of its divisors is an integer number (55414694).

Almost surely, 2^1138288046 is an apocalyptic number.

1138288046 is a deficient number, since it is larger than the sum of its proper divisors (856640938).

1138288046 is an frugal number, since it uses more digits than its factorization.

1138288046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405 (or 207 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 41.

The square root of 1138288046 is about 33738.5246565406. The cubic root of 1138288046 is about 1044.1207460300.

The spelling of 1138288046 in words is "one billion, one hundred thirty-eight million, two hundred eighty-eight thousand, forty-six".