1141644 has 24 divisors (see below), whose sum is σ = 3044608. Its totient is φ = 326160.

The previous prime is 1141633. The next prime is 1141649. The reversal of 1141644 is 4461411.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1141644.

It is not an unprimeable number, because it can be changed into a prime (1141649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6712 + ... + 6879.

2^1141644 is an apocalyptic number.

1141644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1141644 is an abundant number, since it is smaller than the sum of its proper divisors (1902964).

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

1141644 is a wasteful number, since it uses less digits than its factorization.

1141644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13605 (or 13603 counting only the distinct ones).

The product of its digits is 384, while the sum is 21.

The square root of 1141644 is about 1068.4774213805. The cubic root of 1141644 is about 104.5145847794.

The spelling of 1141644 in words is "one million, one hundred forty-one thousand, six hundred forty-four".