1344542340 has 24 divisors (see below), whose sum is σ = 3764718720. Its totient is φ = 358544608.

The previous prime is 1344542281. The next prime is 1344542351. The reversal of 1344542340 is 432454431.

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 = 1344542298 and 1344542307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11204460 + ... + 11204579.

It is an arithmetic number, because the mean of its divisors is an integer number (156863280).

Almost surely, 2^1344542340 is an apocalyptic number.

1344542340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344542340 is an abundant number, since it is smaller than the sum of its proper divisors (2420176380).

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

1344542340 is a wasteful number, since it uses less digits than its factorization.

1344542340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22409051 (or 22409049 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

The square root of 1344542340 is about 36668.0015817606. The cubic root of 1344542340 is about 1103.7180905644.

Adding to 1344542340 its reverse (432454431), we get a palindrome (1776996771).

The spelling of 1344542340 in words is "one billion, three hundred forty-four million, five hundred forty-two thousand, three hundred forty".