1140816 has 20 divisors (see below), whose sum is σ = 2947232. Its totient is φ = 380256.

The previous prime is 1140803. The next prime is 1140847. The reversal of 1140816 is 6180411.

It is a super-2 number, since 2×1140816² = 2602922291712, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1140792 and 1140801.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11836 + ... + 11931.

2^1140816 is an apocalyptic number.

1140816 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1140816 is an abundant number, since it is smaller than the sum of its proper divisors (1806416).

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

1140816 is a wasteful number, since it uses less digits than its factorization.

1140816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23778 (or 23772 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

The square root of 1140816 is about 1068.0898838581. The cubic root of 1140816 is about 104.4893115752.

Subtracting from 1140816 its product of nonzero digits (192), we obtain a square (1140624 = 1068²).

It can be divided in two parts, 114081 and 6, that multiplied together give a palindrome (684486).

The spelling of 1140816 in words is "one million, one hundred forty thousand, eight hundred sixteen".