1140646 has 16 divisors (see below), whose sum is σ = 1940400. Its totient is φ = 498528.

The previous prime is 1140637. The next prime is 1140677. The reversal of 1140646 is 6460411.

1140646 = T₄₃₀ + T₄₃₁ + ... + T₄₄₁.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 661 + ... + 1648.

It is an arithmetic number, because the mean of its divisors is an integer number (121275).

2^1140646 is an apocalyptic number.

1140646 is a deficient number, since it is larger than the sum of its proper divisors (799754).

1140646 is a wasteful number, since it uses less digits than its factorization.

1140646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 1140646 is about 1068.0102995758. The cubic root of 1140646 is about 104.4841211193.

Subtracting from 1140646 its sum of digits (22), we obtain a square (1140624 = 1068²).

The spelling of 1140646 in words is "one million, one hundred forty thousand, six hundred forty-six".