1243441342 has 32 divisors (see below), whose sum is σ = 2223978624. Its totient is φ = 513928800.

The previous prime is 1243441333. The next prime is 1243441349. The reversal of 1243441342 is 2431443421.

It is a super-2 number, since 2×1243441342² = 3092292741989521928, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1243441342.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243441349) 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, 13284 + ... + 51607.

It is an arithmetic number, because the mean of its divisors is an integer number (69499332).

Almost surely, 2^1243441342 is an apocalyptic number.

1243441342 is a deficient number, since it is larger than the sum of its proper divisors (980537282).

1243441342 is a wasteful number, since it uses less digits than its factorization.

1243441342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64984.

The product of its digits is 9216, while the sum is 28.

The square root of 1243441342 is about 35262.4636405343. The cubic root of 1243441342 is about 1075.3300135519.

Adding to 1243441342 its reverse (2431443421), we get a palindrome (3674884763).

The spelling of 1243441342 in words is "one billion, two hundred forty-three million, four hundred forty-one thousand, three hundred forty-two".