1344505040 has 40 divisors (see below), whose sum is σ = 3137645160. Its totient is φ = 535794176.

The previous prime is 1344505033. The next prime is 1344505049. The reversal of 1344505040 is 405054431.

It can be written as a sum of positive squares in 4 ways, for example, as 17505856 + 1326999184 = 4184^2 + 36428^2 .

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1344505049) 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, 9719 + ... + 52758.

It is an arithmetic number, because the mean of its divisors is an integer number (78441129).

Almost surely, 2^1344505040 is an apocalyptic number.

1344505040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1344505040 is an abundant number, since it is smaller than the sum of its proper divisors (1793140120).

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

1344505040 is a wasteful number, since it uses less digits than its factorization.

1344505040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62759 (or 62753 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 1344505040 is about 36667.4929603866. The cubic root of 1344505040 is about 1103.7078841013.

Adding to 1344505040 its reverse (405054431), we get a palindrome (1749559471).

The spelling of 1344505040 in words is "one billion, three hundred forty-four million, five hundred five thousand, forty".