1156000992 has 96 divisors (see below), whose sum is σ = 3138170112. Its totient is φ = 372363264.

The previous prime is 1156000991. The next prime is 1156000997. The reversal of 1156000992 is 2990006511.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1156000991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 398973 + ... + 401859.

It is an arithmetic number, because the mean of its divisors is an integer number (32689272).

Almost surely, 2^1156000992 is an apocalyptic number.

1156000992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1156000992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1569085056).

1156000992 is an abundant number, since it is smaller than the sum of its proper divisors (1982169120).

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

1156000992 is a wasteful number, since it uses less digits than its factorization.

1156000992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3040 (or 3032 counting only the distinct ones).

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1156000992 is about 34000.0145882322. The cubic root of 1156000992 is about 1049.5087625030.

The spelling of 1156000992 in words is "one billion, one hundred fifty-six million, nine hundred ninety-two", and thus it is an aban number.