421505030 has 8 divisors (see below), whose sum is σ = 758709072. Its totient is φ = 168602008.

The previous prime is 421505009. The next prime is 421505033. The reversal of 421505030 is 30505124.

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

It is a junction number, because it is equal to n+sod(n) for n = 421504993 and 421505011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421505033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21075242 + ... + 21075261.

It is an arithmetic number, because the mean of its divisors is an integer number (94838634).

Almost surely, 2^421505030 is an apocalyptic number.

421505030 is a deficient number, since it is larger than the sum of its proper divisors (337204042).

421505030 is a wasteful number, since it uses less digits than its factorization.

421505030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42150510.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 421505030 is about 20530.5876681599. The cubic root of 421505030 is about 749.7806943982.

The spelling of 421505030 in words is "four hundred twenty-one million, five hundred five thousand, thirty".