1338646 has 8 divisors (see below), whose sum is σ = 2095344. Its totient is φ = 640200.

The previous prime is 1338641. The next prime is 1338647. The reversal of 1338646 is 6468331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1338646² = 3583946226632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338641) 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, 14505 + ... + 14596.

It is an arithmetic number, because the mean of its divisors is an integer number (261918).

2^1338646 is an apocalyptic number.

1338646 is a deficient number, since it is larger than the sum of its proper divisors (756698).

1338646 is a wasteful number, since it uses less digits than its factorization.

1338646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29126.

The product of its digits is 10368, while the sum is 31.

The square root of 1338646 is about 1156.9987035429. The cubic root of 1338646 is about 110.2102315591.

The spelling of 1338646 in words is "one million, three hundred thirty-eight thousand, six hundred forty-six".