1156246272 has 108 divisors (see below), whose sum is σ = 3427604040. Its totient is φ = 384473088.

The previous prime is 1156246253. The next prime is 1156246297. The reversal of 1156246272 is 2726426511.

It is a happy number.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

1156246272 is a `hidden beast` number, since 1 + 1 + 5 + 6 + 24 + 627 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (108).

It is a Harshad number since it is a multiple of its sum of digits (36).

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 11 ways as a sum of consecutive naturals, for example, 2826804 + ... + 2827212.

Almost surely, 2^1156246272 is an apocalyptic number.

1156246272 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 1156246272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1713802020).

1156246272 is an abundant number, since it is smaller than the sum of its proper divisors (2271357768).

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

1156246272 is an frugal number, since it uses more digits than its factorization.

1156246272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 843 (or 414 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 1156246272 is about 34003.6214541922. The cubic root of 1156246272 is about 1049.5829854222.

The spelling of 1156246272 in words is "one billion, one hundred fifty-six million, two hundred forty-six thousand, two hundred seventy-two".