1550118838 has 12 divisors (see below), whose sum is σ = 2453998140. Its totient is φ = 734266476.

The previous prime is 1550118821. The next prime is 1550118841. The reversal of 1550118838 is 8388110551.

It is a self number, because there is not a number n which added to its sum of digits gives 1550118838.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1072768 + ... + 1074211.

It is an arithmetic number, because the mean of its divisors is an integer number (204499845).

Almost surely, 2^1550118838 is an apocalyptic number.

1550118838 is a deficient number, since it is larger than the sum of its proper divisors (903879302).

1550118838 is a wasteful number, since it uses less digits than its factorization.

1550118838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147019 (or 2147000 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 40.

The square root of 1550118838 is about 39371.5485852411. The cubic root of 1550118838 is about 1157.3241029731.

The spelling of 1550118838 in words is "one billion, five hundred fifty million, one hundred eighteen thousand, eight hundred thirty-eight".