1331430 has 16 divisors (see below), whose sum is σ = 3195504. Its totient is φ = 355040.

The previous prime is 1331411. The next prime is 1331431. The reversal of 1331430 is 341331.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331431) 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, 22161 + ... + 22220.

It is an arithmetic number, because the mean of its divisors is an integer number (199719).

2^1331430 is an apocalyptic number.

1331430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1331430 is an abundant number, since it is smaller than the sum of its proper divisors (1864074).

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

1331430 is a wasteful number, since it uses less digits than its factorization.

1331430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44391.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1331430 is about 1153.8760765351. The cubic root of 1331430 is about 110.0118444546.

Adding to 1331430 its reverse (341331), we get a palindrome (1672761).

Subtracting from 1331430 its reverse (341331), we obtain a palindrome (990099).

The spelling of 1331430 in words is "one million, three hundred thirty-one thousand, four hundred thirty".