1148644 has 12 divisors (see below), whose sum is σ = 2297344. Its totient is φ = 492264.

The previous prime is 1148629. The next prime is 1148647. The reversal of 1148644 is 4468411.

1148644 is an admirable number.

It is a Harshad number since it is a multiple of its sum of digits (28), and also a Moran number because the ratio is a prime number: 41023 = 1148644 / (1 + 1 + 4 + 8 + 6 + 4 + 4).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (1148647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20484 + ... + 20539.

2^1148644 is an apocalyptic number.

1148644 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1148644 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1148644 is a wasteful number, since it uses less digits than its factorization.

1148644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41034 (or 41032 counting only the distinct ones).

The product of its digits is 3072, while the sum is 28.

The square root of 1148644 is about 1071.7481047336. The cubic root of 1148644 is about 104.7277603669.

The spelling of 1148644 in words is "one million, one hundred forty-eight thousand, six hundred forty-four".