1138587774 has 16 divisors (see below), whose sum is σ = 2297328912. Its totient is φ = 376170368.

The previous prime is 1138587757. The next prime is 1138587811. The reversal of 1138587774 is 4777858311.

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 7 ways as a sum of consecutive naturals, for example, 838989 + ... + 840344.

It is an arithmetic number, because the mean of its divisors is an integer number (143583057).

Almost surely, 2^1138587774 is an apocalyptic number.

1138587774 is an abundant number, since it is smaller than the sum of its proper divisors (1158741138).

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

1138587774 is a wasteful number, since it uses less digits than its factorization.

1138587774 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1679451.

The product of its digits is 1317120, while the sum is 51.

The square root of 1138587774 is about 33742.9662892876. The cubic root of 1138587774 is about 1044.2123821087.

The spelling of 1138587774 in words is "one billion, one hundred thirty-eight million, five hundred eighty-seven thousand, seven hundred seventy-four".