1089724256 has 24 divisors (see below), whose sum is σ = 2157259104. Its totient is φ = 541848960.

The previous prime is 1089724253. The next prime is 1089724261. The reversal of 1089724256 is 6524279801.

It is a happy number.

It is a super-2 number, since 2×1089724256² = 2374997908229507072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1089724253) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88280 + ... + 99863.

It is an arithmetic number, because the mean of its divisors is an integer number (89885796).

Almost surely, 2^1089724256 is an apocalyptic number.

1089724256 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1089724256 is a deficient number, since it is larger than the sum of its proper divisors (1067534848).

1089724256 is a wasteful number, since it uses less digits than its factorization.

1089724256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 188334 (or 188326 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 1089724256 is about 33010.9717518282. The cubic root of 1089724256 is about 1029.0556764206.

It can be divided in two parts, 10897 and 24256, that added together give a palindrome (35153).

The spelling of 1089724256 in words is "one billion, eighty-nine million, seven hundred twenty-four thousand, two hundred fifty-six".