1826775138 has 16 divisors (see below), whose sum is σ = 3812400576. Its totient is φ = 582450000.

The previous prime is 1826775079. The next prime is 1826775157. The reversal of 1826775138 is 8315776281.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6618613 + ... + 6618888.

It is an arithmetic number, because the mean of its divisors is an integer number (238275036).

Almost surely, 2^1826775138 is an apocalyptic number.

1826775138 is an abundant number, since it is smaller than the sum of its proper divisors (1985625438).

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

1826775138 is a wasteful number, since it uses less digits than its factorization.

1826775138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13237529.

The product of its digits is 564480, while the sum is 48.

The square root of 1826775138 is about 42740.7900956452. The cubic root of 1826775138 is about 1222.4422853219.

The spelling of 1826775138 in words is "one billion, eight hundred twenty-six million, seven hundred seventy-five thousand, one hundred thirty-eight".