1212424644 has 24 divisors (see below), whose sum is σ = 2846351200. Its totient is φ = 401661504.

The previous prime is 1212424607. The next prime is 1212424651. The reversal of 1212424644 is 4464242121.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307969 + ... + 311880.

Almost surely, 2^1212424644 is an apocalyptic number.

It is an amenable number.

1212424644 is an abundant number, since it is smaller than the sum of its proper divisors (1633926556).

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

1212424644 is a wasteful number, since it uses less digits than its factorization.

1212424644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620019 (or 620017 counting only the distinct ones).

The product of its digits is 12288, while the sum is 30.

The square root of 1212424644 is about 34819.8886270476. Note that the first 3 decimals coincide. The cubic root of 1212424644 is about 1066.3135266322.

Adding to 1212424644 its reverse (4464242121), we get a palindrome (5676666765).

The spelling of 1212424644 in words is "one billion, two hundred twelve million, four hundred twenty-four thousand, six hundred forty-four".