1212342 has 32 divisors (see below), whose sum is σ = 2568192. Its totient is φ = 381024.

The previous prime is 1212331. The next prime is 1212347. The reversal of 1212342 is 2432121.

It is an Ulam number.

It is a zygodrome in base 8.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9483 + ... + 9609.

It is an arithmetic number, because the mean of its divisors is an integer number (80256).

2^1212342 is an apocalyptic number.

1212342 is an abundant number, since it is smaller than the sum of its proper divisors (1355850).

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

1212342 is a wasteful number, since it uses less digits than its factorization.

1212342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212.

The product of its digits is 96, while the sum is 15.

The square root of 1212342 is about 1101.0640308356. The cubic root of 1212342 is about 106.6289297933.

Adding to 1212342 its reverse (2432121), we get a palindrome (3644463).

It can be divided in two parts, 121 and 2342, that multiplied together give a palindrome (283382).

The spelling of 1212342 in words is "one million, two hundred twelve thousand, three hundred forty-two".