1342404 has 54 divisors (see below), whose sum is σ = 3952494. Its totient is φ = 383040.

The previous prime is 1342403. The next prime is 1342409. The reversal of 1342404 is 4042431.

It can be written as a sum of positive squares in only one way, i.e., 705600 + 636804 = 840^2 + 798^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1342403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1384 + ... + 2144.

2^1342404 is an apocalyptic number.

1342404 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1342404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1976247).

1342404 is an abundant number, since it is smaller than the sum of its proper divisors (2610090).

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

1342404 is a wasteful number, since it uses less digits than its factorization.

1342404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 785 (or 773 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 1342404 is about 1158.6215948272. The cubic root of 1342404 is about 110.3132667865.

Adding to 1342404 its reverse (4042431), we get a palindrome (5384835).

The spelling of 1342404 in words is "one million, three hundred forty-two thousand, four hundred four".