1344045540 has 24 divisors (see below), whose sum is σ = 3763327680. Its totient is φ = 358412128.

The previous prime is 1344045533. The next prime is 1344045553. The reversal of 1344045540 is 455404431.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 1344045498 and 1344045507.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11200320 + ... + 11200439.

It is an arithmetic number, because the mean of its divisors is an integer number (156805320).

Almost surely, 2^1344045540 is an apocalyptic number.

1344045540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344045540 is an abundant number, since it is smaller than the sum of its proper divisors (2419282140).

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

1344045540 is a wasteful number, since it uses less digits than its factorization.

1344045540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22400771 (or 22400769 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

The square root of 1344045540 is about 36661.2266570555. The cubic root of 1344045540 is about 1103.5821348370.

Adding to 1344045540 its reverse (455404431), we get a palindrome (1799449971).

The spelling of 1344045540 in words is "one billion, three hundred forty-four million, forty-five thousand, five hundred forty".