1212433442 has 16 divisors (see below), whose sum is σ = 1996624512. Its totient is φ = 547594320.

The previous prime is 1212433433. The next prime is 1212433447. The reversal of 1212433442 is 2443342121.

It is not an unprimeable number, because it can be changed into a prime (1212433447) 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, 172058 + ... + 178965.

It is an arithmetic number, because the mean of its divisors is an integer number (124789032).

Almost surely, 2^1212433442 is an apocalyptic number.

1212433442 is a deficient number, since it is larger than the sum of its proper divisors (784191070).

1212433442 is a wasteful number, since it uses less digits than its factorization.

1212433442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351193.

The product of its digits is 4608, while the sum is 26.

The square root of 1212433442 is about 34820.0149626619. The cubic root of 1212433442 is about 1066.3161058726.

Adding to 1212433442 its reverse (2443342121), we get a palindrome (3655775563).

The spelling of 1212433442 in words is "one billion, two hundred twelve million, four hundred thirty-three thousand, four hundred forty-two".