1338407 has 8 divisors (see below), whose sum is σ = 1537536. Its totient is φ = 1141272.

The previous prime is 1338397. The next prime is 1338413. The reversal of 1338407 is 7048331.

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

It is a cyclic number.

It is not a de Polignac number, because 1338407 - 2⁴ = 1338391 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1338457) 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, 1478 + ... + 2204.

It is an arithmetic number, because the mean of its divisors is an integer number (192192).

2^1338407 is an apocalyptic number.

1338407 is a deficient number, since it is larger than the sum of its proper divisors (199129).

1338407 is an equidigital number, since it uses as much as digits as its factorization.

1338407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 997.

The product of its (nonzero) digits is 2016, while the sum is 26.

The square root of 1338407 is about 1156.8954144606. The cubic root of 1338407 is about 110.2036722415.

The spelling of 1338407 in words is "one million, three hundred thirty-eight thousand, four hundred seven".