1243013416 has 32 divisors (see below), whose sum is σ = 2373624000. Its totient is φ = 610078336.

The previous prime is 1243013393. The next prime is 1243013419. The reversal of 1243013416 is 6143103421.

It is not an unprimeable number, because it can be changed into a prime (1243013419) 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, 417180 + ... + 420148.

It is an arithmetic number, because the mean of its divisors is an integer number (74175750).

Almost surely, 2^1243013416 is an apocalyptic number.

It is an amenable number.

1243013416 is a deficient number, since it is larger than the sum of its proper divisors (1130610584).

1243013416 is a wasteful number, since it uses less digits than its factorization.

1243013416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3921 (or 3917 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 1243013416 is about 35256.3953914747. The cubic root of 1243013416 is about 1075.2066423740.

Adding to 1243013416 its reverse (6143103421), we get a palindrome (7386116837).

The spelling of 1243013416 in words is "one billion, two hundred forty-three million, thirteen thousand, four hundred sixteen".