421030 has 16 divisors (see below), whose sum is σ = 769824. Its totient is φ = 165760.

The previous prime is 421019. The next prime is 421033. The reversal of 421030 is 30124.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 420998 and 421016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421033) 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, 414 + ... + 1006.

It is an arithmetic number, because the mean of its divisors is an integer number (48114).

2⁴²¹⁰³⁰ is an apocalyptic number.

421030 is a deficient number, since it is larger than the sum of its proper divisors (348794).

421030 is a wasteful number, since it uses less digits than its factorization.

421030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 671.

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 421030 is about 648.8682454859. The cubic root of 421030 is about 74.9498924565.

Adding to 421030 its reverse (30124), we get a palindrome (451154).

The spelling of 421030 in words is "four hundred twenty-one thousand, thirty".