1344349818 has 64 divisors (see below), whose sum is σ = 3437280000. Its totient is φ = 381506112.

The previous prime is 1344349801. The next prime is 1344349837. The reversal of 1344349818 is 8189434431.

1344349818 is a `hidden beast` number, since 134 + 434 + 9 + 81 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 44388 + ... + 68256.

It is an arithmetic number, because the mean of its divisors is an integer number (53707500).

Almost surely, 2^1344349818 is an apocalyptic number.

1344349818 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1344349818, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1718640000).

1344349818 is an abundant number, since it is smaller than the sum of its proper divisors (2092930182).

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

1344349818 is a wasteful number, since it uses less digits than its factorization.

1344349818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24036 (or 24030 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 1344349818 is about 36665.3762833548. The cubic root of 1344349818 is about 1103.6654084111.

The spelling of 1344349818 in words is "one billion, three hundred forty-four million, three hundred forty-nine thousand, eight hundred eighteen".