1344133540 has 24 divisors (see below), whose sum is σ = 2856692160. Its totient is φ = 531175008.

The previous prime is 1344133537. The next prime is 1344133541. The reversal of 1344133540 is 453314431.

It is a junction number, because it is equal to n+sod(n) for n = 1344133499 and 1344133508.

It is not an unprimeable number, because it can be changed into a prime (1344133541) 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, 403200 + ... + 406519.

It is an arithmetic number, because the mean of its divisors is an integer number (119028840).

Almost surely, 2^1344133540 is an apocalyptic number.

1344133540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344133540 is an abundant number, since it is smaller than the sum of its proper divisors (1512558620).

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

1344133540 is a wasteful number, since it uses less digits than its factorization.

1344133540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809811 (or 809809 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 1344133540 is about 36662.4268154742. The cubic root of 1344133540 is about 1103.6062196132.

Adding to 1344133540 its reverse (453314431), we get a palindrome (1797447971).

The spelling of 1344133540 in words is "one billion, three hundred forty-four million, one hundred thirty-three thousand, five hundred forty".