1337668 has 12 divisors (see below), whose sum is σ = 2358972. Its totient is φ = 663680.

The previous prime is 1337663. The next prime is 1337671. The reversal of 1337668 is 8667331.

It can be written as a sum of positive squares in 2 ways, for example, as 419904 + 917764 = 648^2 + 958^2 .

It is not an unprimeable number, because it can be changed into a prime (1337663) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 673 + ... + 1768.

It is an arithmetic number, because the mean of its divisors is an integer number (196581).

2^1337668 is an apocalyptic number.

It is an amenable number.

1337668 is a deficient number, since it is larger than the sum of its proper divisors (1021304).

1337668 is a wasteful number, since it uses less digits than its factorization.

1337668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2582 (or 2580 counting only the distinct ones).

The product of its digits is 18144, while the sum is 34.

The square root of 1337668 is about 1156.5759810752. The cubic root of 1337668 is about 110.1833855605.

It can be divided in two parts, 1337 and 668, that multiplied together give a triangular number (893116 = T₁₃₃₆).

The spelling of 1337668 in words is "one million, three hundred thirty-seven thousand, six hundred sixty-eight".