1231426344 has 16 divisors (see below), whose sum is σ = 3078565920. Its totient is φ = 410475440.

The previous prime is 1231426321. The next prime is 1231426351. The reversal of 1231426344 is 4436241321.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25654692 + ... + 25654739.

It is an arithmetic number, because the mean of its divisors is an integer number (192410370).

Almost surely, 2^1231426344 is an apocalyptic number.

It is an amenable number.

1231426344 is an abundant number, since it is smaller than the sum of its proper divisors (1847139576).

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

1231426344 is a wasteful number, since it uses less digits than its factorization.

1231426344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51309440 (or 51309436 counting only the distinct ones).

The product of its digits is 13824, while the sum is 30.

The square root of 1231426344 is about 35091.6848270356. The cubic root of 1231426344 is about 1071.8552679224.

Adding to 1231426344 its reverse (4436241321), we get a palindrome (5667667665).

The spelling of 1231426344 in words is "one billion, two hundred thirty-one million, four hundred twenty-six thousand, three hundred forty-four".