1140736 has 24 divisors (see below), whose sum is σ = 2285010. Its totient is φ = 569344.

The previous prime is 1140721. The next prime is 1140749. The reversal of 1140736 is 6370411.

It can be written as a sum of positive squares in only one way, i.e., 1115136 + 25600 = 1056^2 + 160^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1770 + ... + 2326.

2^1140736 is an apocalyptic number.

1140736 is a gapful number since it is divisible by the number (16) 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 1140736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1142505).

1140736 is an abundant number, since it is smaller than the sum of its proper divisors (1144274).

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

1140736 is an frugal number, since it uses more digits than its factorization.

1140736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579 (or 559 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1140736 is about 1068.0524331698. The cubic root of 1140736 is about 104.4868690719.

The spelling of 1140736 in words is "one million, one hundred forty thousand, seven hundred thirty-six".