1245424236 has 96 divisors (see below), whose sum is σ = 3570524160. Its totient is φ = 329914944.

The previous prime is 1245424153. The next prime is 1245424237. The reversal of 1245424236 is 6324245421.

It is a junction number, because it is equal to n+sod(n) for n = 1245424197 and 1245424206.

It is not an unprimeable number, because it can be changed into a prime (1245424237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66711 + ... + 83313.

It is an arithmetic number, because the mean of its divisors is an integer number (37192960).

Almost surely, 2^1245424236 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1245424236, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1785262080).

1245424236 is an abundant number, since it is smaller than the sum of its proper divisors (2325099924).

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

1245424236 is a wasteful number, since it uses less digits than its factorization.

1245424236 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16683 (or 16681 counting only the distinct ones).

The product of its digits is 46080, while the sum is 33.

The square root of 1245424236 is about 35290.5686550954. The cubic root of 1245424236 is about 1075.9013132544.

Adding to 1245424236 its reverse (6324245421), we get a palindrome (7569669657).

It can be divided in two parts, 124542 and 4236, that added together give a triangular number (128778 = T₅₀₇).

The spelling of 1245424236 in words is "one billion, two hundred forty-five million, four hundred twenty-four thousand, two hundred thirty-six".