1430000 has 100 divisors (see below), whose sum is σ = 4067448. Its totient is φ = 480000.

The previous prime is 1429969. The next prime is 1430027. The reversal of 1430000 is 341.

It is a tau number, because it is divible by the number of its divisors (100).

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1430000.

It is a congruent number.

It is an unprimeable number.

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 19 ways as a sum of consecutive naturals, for example, 109994 + ... + 110006.

2^1430000 is an apocalyptic number.

1430000 is a gapful number since it is divisible by the number (10) 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 1430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2033724).

1430000 is an abundant number, since it is smaller than the sum of its proper divisors (2637448).

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

1430000 is a wasteful number, since it uses less digits than its factorization.

1430000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52 (or 31 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 1430000 is about 1195.8260743101. The cubic root of 1430000 is about 112.6623171335.

Adding to 1430000 its reverse (341), we get a palindrome (1430341).

The spelling of 1430000 in words is "one million, four hundred thirty thousand".