1243424896 has 64 divisors (see below), whose sum is σ = 2954148480. Its totient is φ = 509718528.

The previous prime is 1243424893. The next prime is 1243424933. The reversal of 1243424896 is 6984243421.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×1243424896² = 3092210943985221632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1243424893) 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, 9561 + ... + 50776.

It is an arithmetic number, because the mean of its divisors is an integer number (46158570).

Almost surely, 2^1243424896 is an apocalyptic number.

1243424896 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1243424896 is an abundant number, since it is smaller than the sum of its proper divisors (1710723584).

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

1243424896 is an equidigital number, since it uses as much as digits as its factorization.

1243424896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60381 (or 60369 counting only the distinct ones).

The product of its digits is 331776, while the sum is 43.

The square root of 1243424896 is about 35262.2304456199. The cubic root of 1243424896 is about 1075.3252726888.

The spelling of 1243424896 in words is "one billion, two hundred forty-three million, four hundred twenty-four thousand, eight hundred ninety-six".