1212442 has 16 divisors (see below), whose sum is σ = 2267712. Its totient is φ = 472320.

The previous prime is 1212439. The next prime is 1212443. The reversal of 1212442 is 2442121.

It is a d-powerful number, because it can be written as 1 + 2³ + 1 + 2¹⁵ + 4² + 4¹⁰ + 2¹⁷ .

It is not an unprimeable number, because it can be changed into a prime (1212443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3783 + ... + 4090.

It is an arithmetic number, because the mean of its divisors is an integer number (141732).

2^1212442 is an apocalyptic number.

1212442 is a deficient number, since it is larger than the sum of its proper divisors (1055270).

1212442 is a wasteful number, since it uses less digits than its factorization.

1212442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7893.

The product of its digits is 128, while the sum is 16.

The square root of 1212442 is about 1101.1094405190. The cubic root of 1212442 is about 106.6318614742.

Adding to 1212442 its reverse (2442121), we get a palindrome (3654563).

The spelling of 1212442 in words is "one million, two hundred twelve thousand, four hundred forty-two".