1243441242 has 24 divisors (see below), whose sum is σ = 2696279040. Its totient is φ = 414148680.

The previous prime is 1243441229. The next prime is 1243441267. The reversal of 1243441242 is 2421443421.

1243441242 is a `hidden beast` number, since 1 + 243 + 4 + 412 + 4 + 2 = 666.

It is a super-2 number, since 2×1243441242² = 3092292244613005128, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3984 + ... + 50027.

It is an arithmetic number, because the mean of its divisors is an integer number (112344960).

Almost surely, 2^1243441242 is an apocalyptic number.

1243441242 is an abundant number, since it is smaller than the sum of its proper divisors (1452837798).

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

1243441242 is a wasteful number, since it uses less digits than its factorization.

1243441242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55298 (or 55295 counting only the distinct ones).

The product of its digits is 6144, while the sum is 27.

The square root of 1243441242 is about 35262.4622225959. The cubic root of 1243441242 is about 1075.3299847252.

Adding to 1243441242 its reverse (2421443421), we get a palindrome (3664884663).

The spelling of 1243441242 in words is "one billion, two hundred forty-three million, four hundred forty-one thousand, two hundred forty-two".