1430421 has 8 divisors (see below), whose sum is σ = 1913184. Its totient is φ = 950640.

The previous prime is 1430419. The next prime is 1430441. The reversal of 1430421 is 1240341.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1430421 - 2¹ = 1430419 is a prime.

It is a super-2 number, since 2×1430421² = 4092208474482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1430421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1430441) 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, 891 + ... + 1911.

It is an arithmetic number, because the mean of its divisors is an integer number (239148).

2^1430421 is an apocalyptic number.

It is an amenable number.

1430421 is a deficient number, since it is larger than the sum of its proper divisors (482763).

1430421 is a wasteful number, since it uses less digits than its factorization.

1430421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491.

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

The square root of 1430421 is about 1196.0020902992. The cubic root of 1430421 is about 112.6733721875.

Adding to 1430421 its reverse (1240341), we get a palindrome (2670762).

The spelling of 1430421 in words is "one million, four hundred thirty thousand, four hundred twenty-one".