1431420 has 24 divisors (see below), whose sum is σ = 4008144. Its totient is φ = 381696.

The previous prime is 1431413. The next prime is 1431421. The reversal of 1431420 is 241341.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1431420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1431421) 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, 11869 + ... + 11988.

It is an arithmetic number, because the mean of its divisors is an integer number (167006).

2^1431420 is an apocalyptic number.

1431420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1431420 is an abundant number, since it is smaller than the sum of its proper divisors (2576724).

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

1431420 is a wasteful number, since it uses less digits than its factorization.

1431420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23869 (or 23867 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 1431420 is about 1196.4196588154. The cubic root of 1431420 is about 112.6995962863.

Adding to 1431420 its reverse (241341), we get a palindrome (1672761).

The spelling of 1431420 in words is "one million, four hundred thirty-one thousand, four hundred twenty".