1138534298 has 16 divisors (see below), whose sum is σ = 1902697344. Its totient is φ = 506504160.

The previous prime is 1138534273. The next prime is 1138534307. The reversal of 1138534298 is 8924358311.

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 7 ways as a sum of consecutive naturals, for example, 549515 + ... + 551582.

It is an arithmetic number, because the mean of its divisors is an integer number (118918584).

Almost surely, 2^1138534298 is an apocalyptic number.

1138534298 is a deficient number, since it is larger than the sum of its proper divisors (764163046).

1138534298 is a wasteful number, since it uses less digits than its factorization.

1138534298 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1101157.

The product of its digits is 207360, while the sum is 44.

The square root of 1138534298 is about 33742.1738778046. The cubic root of 1138534298 is about 1044.1960340276.

The spelling of 1138534298 in words is "one billion, one hundred thirty-eight million, five hundred thirty-four thousand, two hundred ninety-eight".