1338620 has 12 divisors (see below), whose sum is σ = 2811144. Its totient is φ = 535440.

The previous prime is 1338587. The next prime is 1338637. The reversal of 1338620 is 268331.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33446 + ... + 33485.

It is an arithmetic number, because the mean of its divisors is an integer number (234262).

2^1338620 is an apocalyptic number.

1338620 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1338620 is an abundant number, since it is smaller than the sum of its proper divisors (1472524).

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

1338620 is a wasteful number, since it uses less digits than its factorization.

1338620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66940 (or 66938 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1338620 is about 1156.9874675207. The cubic root of 1338620 is about 110.2095180310.

The spelling of 1338620 in words is "one million, three hundred thirty-eight thousand, six hundred twenty".