1138583250 has 128 divisors (see below), whose sum is σ = 3608916480. Its totient is φ = 260236800.

The previous prime is 1138583213. The next prime is 1138583267. The reversal of 1138583250 is 523858311.

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 63 ways as a sum of consecutive naturals, for example, 35202 + ... + 59298.

It is an arithmetic number, because the mean of its divisors is an integer number (28194660).

Almost surely, 2^1138583250 is an apocalyptic number.

1138583250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1138583250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1804458240).

1138583250 is an abundant number, since it is smaller than the sum of its proper divisors (2470333230).

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

1138583250 is a wasteful number, since it uses less digits than its factorization.

1138583250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24130 (or 24114 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 1138583250 is about 33742.8992530280. The cubic root of 1138583250 is about 1044.2109991021.

The spelling of 1138583250 in words is "one billion, one hundred thirty-eight million, five hundred eighty-three thousand, two hundred fifty".