1138503762 has 90 divisors (see below), whose sum is σ = 2815776117. Its totient is φ = 343569600.

The previous prime is 1138503761. The next prime is 1138503803. The reversal of 1138503762 is 2673058311.

It can be written as a sum of positive squares in 2 ways, for example, as 1060870041 + 77633721 = 32571^2 + 8811^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=23859.

It is not an unprimeable number, because it can be changed into a prime (1138503761) 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 in 44 ways as a sum of consecutive naturals, for example, 4723962 + ... + 4724202.

Almost surely, 2^1138503762 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138503762

1138503762 is an abundant number, since it is smaller than the sum of its proper divisors (1677272355).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1138503762 is an equidigital number, since it uses as much as digits as its factorization.

1138503762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518 (or 257 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 1138503762 is about 33741.7213846597. The cubic root of 1138503762 is about 1044.1866986757.

The spelling of 1138503762 in words is "one billion, one hundred thirty-eight million, five hundred three thousand, seven hundred sixty-two".