1338345 has 12 divisors (see below), whose sum is σ = 2319876. Its totient is φ = 713760.

The previous prime is 1338343. The next prime is 1338349. The reversal of 1338345 is 5438331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 870489 + 467856 = 933^2 + 684^2 .

It is not a de Polignac number, because 1338345 - 2¹ = 1338343 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1338343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14826 + ... + 14915.

It is an arithmetic number, because the mean of its divisors is an integer number (193323).

2^1338345 is an apocalyptic number.

1338345 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1338345 is a deficient number, since it is larger than the sum of its proper divisors (981531).

1338345 is a wasteful number, since it uses less digits than its factorization.

1338345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29752 (or 29749 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 1338345 is about 1156.8686182968. The cubic root of 1338345 is about 110.2019705336.

Subtracting from 1338345 its product of digits (4320), we obtain a square (1334025 = 1155²).

The spelling of 1338345 in words is "one million, three hundred thirty-eight thousand, three hundred forty-five".