1331418 has 16 divisors (see below), whose sum is σ = 2905056. Its totient is φ = 403440.

The previous prime is 1331411. The next prime is 1331431. The reversal of 1331418 is 8141331.

It is a junction number, because it is equal to n+sod(n) for n = 1331394 and 1331403.

It is not an unprimeable number, because it can be changed into a prime (1331411) 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, 10021 + ... + 10152.

It is an arithmetic number, because the mean of its divisors is an integer number (181566).

2^1331418 is an apocalyptic number.

1331418 is an abundant number, since it is smaller than the sum of its proper divisors (1573638).

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

1331418 is a wasteful number, since it uses less digits than its factorization.

1331418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20189.

The product of its digits is 288, while the sum is 21.

The square root of 1331418 is about 1153.8708766582. The cubic root of 1331418 is about 110.0115139463.

Adding to 1331418 its reverse (8141331), we get a palindrome (9472749).

It can be divided in two parts, 133 and 1418, that added together give a palindrome (1551).

The spelling of 1331418 in words is "one million, three hundred thirty-one thousand, four hundred eighteen".