1146992128 has 40 divisors (see below), whose sum is σ = 2317586040. Its totient is φ = 567029760.

The previous prime is 1146992111. The next prime is 1146992131. The reversal of 1146992128 is 8212996411.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32983 + ... + 58153.

It is an arithmetic number, because the mean of its divisors is an integer number (57939651).

Almost surely, 2^1146992128 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 1146992128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1158793020).

1146992128 is an abundant number, since it is smaller than the sum of its proper divisors (1170593912).

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

1146992128 is an frugal number, since it uses more digits than its factorization.

1146992128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25278 (or 25262 counting only the distinct ones).

The product of its digits is 62208, while the sum is 43.

The square root of 1146992128 is about 33867.2722255572. The cubic root of 1146992128 is about 1046.7753306974.

The spelling of 1146992128 in words is "one billion, one hundred forty-six million, nine hundred ninety-two thousand, one hundred twenty-eight".