1155944 has 16 divisors (see below), whose sum is σ = 2185920. Its totient is φ = 573040.

The previous prime is 1155943. The next prime is 1155953. The reversal of 1155944 is 4495511.

It is a super-2 number, since 2×1155944² = 2672413062272, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1155943) 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, 497 + ... + 1599.

It is an arithmetic number, because the mean of its divisors is an integer number (136620).

2^1155944 is an apocalyptic number.

It is an amenable number.

1155944 is a deficient number, since it is larger than the sum of its proper divisors (1029976).

1155944 is a wasteful number, since it uses less digits than its factorization.

1155944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240 (or 1236 counting only the distinct ones).

The product of its digits is 3600, while the sum is 29.

The square root of 1155944 is about 1075.1483618552. The cubic root of 1155944 is about 104.9491514944.

It can be divided in two parts, 11 and 55944, that added together give a palindrome (55955).

The spelling of 1155944 in words is "one million, one hundred fifty-five thousand, nine hundred forty-four".