1137918628 has 48 divisors (see below), whose sum is σ = 2497711104. Its totient is φ = 440670240.

The previous prime is 1137918577. The next prime is 1137918637. The reversal of 1137918628 is 8268197311.

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 15 ways as a sum of consecutive naturals, for example, 40375 + ... + 62497.

It is an arithmetic number, because the mean of its divisors is an integer number (52035648).

Almost surely, 2^1137918628 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1137918628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1248855552).

1137918628 is an abundant number, since it is smaller than the sum of its proper divisors (1359792476).

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

1137918628 is a wasteful number, since it uses less digits than its factorization.

1137918628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22312 (or 22310 counting only the distinct ones).

The product of its digits is 145152, while the sum is 46.

The square root of 1137918628 is about 33733.0494915595. The cubic root of 1137918628 is about 1044.0077814387.

The spelling of 1137918628 in words is "one billion, one hundred thirty-seven million, nine hundred eighteen thousand, six hundred twenty-eight".