1181944 has 8 divisors (see below), whose sum is σ = 2216160. Its totient is φ = 590968.

The previous prime is 1181927. The next prime is 1181963. The reversal of 1181944 is 4491811.

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 73864 + ... + 73879.

It is an arithmetic number, because the mean of its divisors is an integer number (277020).

2^1181944 is an apocalyptic number.

It is an amenable number.

1181944 is a deficient number, since it is larger than the sum of its proper divisors (1034216).

1181944 is a wasteful number, since it uses less digits than its factorization.

1181944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147749 (or 147745 counting only the distinct ones).

The product of its digits is 1152, while the sum is 28.

The square root of 1181944 is about 1087.1724794162. The cubic root of 1181944 is about 105.7301788342.

The spelling of 1181944 in words is "one million, one hundred eighty-one thousand, nine hundred forty-four".