1242384 has 80 divisors (see below), whose sum is σ = 3791424. Its totient is φ = 345600.

The previous prime is 1242379. The next prime is 1242403. The reversal of 1242384 is 4832421.

It is a Harshad number since it is a multiple of its sum of digits (24).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6774 + ... + 6954.

2^1242384 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1242384, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1895712).

1242384 is an abundant number, since it is smaller than the sum of its proper divisors (2549040).

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

1242384 is a wasteful number, since it uses less digits than its factorization.

1242384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 210 counting only the distinct ones).

The product of its digits is 1536, while the sum is 24.

The square root of 1242384 is about 1114.6228061546. The cubic root of 1242384 is about 107.5025130114.

The spelling of 1242384 in words is "one million, two hundred forty-two thousand, three hundred eighty-four".