1430420 has 24 divisors (see below), whose sum is σ = 3086664. Its totient is φ = 556416.

The previous prime is 1430419. The next prime is 1430441. The reversal of 1430420 is 240341.

It can be written as a sum of positive squares in 4 ways, for example, as 512656 + 917764 = 716^2 + 958^2 .

It is a super-2 number, since 2×1430420² = 4092202752800, which contains 22 as substring.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1430395 and 1430404.

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 7 ways as a sum of consecutive naturals, for example, 227 + ... + 1706.

It is an arithmetic number, because the mean of its divisors is an integer number (128611).

2^1430420 is an apocalyptic number.

1430420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1430420 is an abundant number, since it is smaller than the sum of its proper divisors (1656244).

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

1430420 is a wasteful number, since it uses less digits than its factorization.

1430420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1979 (or 1977 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 14.

The square root of 1430420 is about 1196.0016722396. The cubic root of 1430420 is about 112.6733459310.

Adding to 1430420 its reverse (240341), we get a palindrome (1670761).

The spelling of 1430420 in words is "one million, four hundred thirty thousand, four hundred twenty".