1242336 has 24 divisors (see below), whose sum is σ = 3261384. Its totient is φ = 414080.

The previous prime is 1242317. The next prime is 1242347. The reversal of 1242336 is 6332421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (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 3 ways as a sum of consecutive naturals, for example, 6375 + ... + 6566.

It is an arithmetic number, because the mean of its divisors is an integer number (135891).

2^1242336 is an apocalyptic number.

1242336 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1242336 is an abundant number, since it is smaller than the sum of its proper divisors (2019048).

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

1242336 is a wasteful number, since it uses less digits than its factorization.

1242336 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12954 (or 12946 counting only the distinct ones).

The product of its digits is 864, while the sum is 21.

The square root of 1242336 is about 1114.6012739989. The cubic root of 1242336 is about 107.5011285261.

Adding to 1242336 its reverse (6332421), we get a palindrome (7574757).

The spelling of 1242336 in words is "one million, two hundred forty-two thousand, three hundred thirty-six".