1342420 has 12 divisors (see below), whose sum is σ = 2819124. Its totient is φ = 536960.

The previous prime is 1342409. The next prime is 1342423. The reversal of 1342420 is 242431.

It can be written as a sum of positive squares in 2 ways, for example, as 571536 + 770884 = 756^2 + 878^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1342394 and 1342403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342423) 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, 33541 + ... + 33580.

It is an arithmetic number, because the mean of its divisors is an integer number (234927).

2^1342420 is an apocalyptic number.

1342420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1342420 is an abundant number, since it is smaller than the sum of its proper divisors (1476704).

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

1342420 is a wasteful number, since it uses less digits than its factorization.

1342420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67130 (or 67128 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 1342420 is about 1158.6284995632. The cubic root of 1342420 is about 110.3137050563.

Adding to 1342420 its reverse (242431), we get a palindrome (1584851).

The spelling of 1342420 in words is "one million, three hundred forty-two thousand, four hundred twenty".