1244023434 has 48 divisors (see below), whose sum is σ = 2800482048. Its totient is φ = 413893152.

The previous prime is 1244023421. The next prime is 1244023439. The reversal of 1244023434 is 4343204421.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 1244023398 and 1244023407.

It is not an unprimeable number, because it can be changed into a prime (1244023439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 292894 + ... + 297110.

It is an arithmetic number, because the mean of its divisors is an integer number (58343376).

Almost surely, 2^1244023434 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1244023434, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1400241024).

1244023434 is an abundant number, since it is smaller than the sum of its proper divisors (1556458614).

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

1244023434 is an equidigital number, since it uses as much as digits as its factorization.

1244023434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4841 (or 4829 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

The square root of 1244023434 is about 35270.7163805897. The cubic root of 1244023434 is about 1075.4977853984.

Adding to 1244023434 its reverse (4343204421), we get a palindrome (5587227855).

The spelling of 1244023434 in words is "one billion, two hundred forty-four million, twenty-three thousand, four hundred thirty-four".