1339420 has 24 divisors (see below), whose sum is σ = 2835504. Its totient is φ = 531456.

The previous prime is 1339411. The next prime is 1339427. The reversal of 1339420 is 249331.

It is a junction number, because it is equal to n+sod(n) for n = 1339391 and 1339400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1339427) 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, 3687 + ... + 4033.

It is an arithmetic number, because the mean of its divisors is an integer number (118146).

2^1339420 is an apocalyptic number.

1339420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1339420 is an abundant number, since it is smaller than the sum of its proper divisors (1496084).

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

1339420 is a wasteful number, since it uses less digits than its factorization.

1339420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549 (or 547 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1339420 is about 1157.3331413210. Note that the first 3 decimals coincide. The cubic root of 1339420 is about 110.2314685115.

The spelling of 1339420 in words is "one million, three hundred thirty-nine thousand, four hundred twenty".