421553030 has 16 divisors (see below), whose sum is σ = 759670704. Its totient is φ = 168426720.

The previous prime is 421553023. The next prime is 421553071. The reversal of 421553030 is 30355124.

It is a junction number, because it is equal to n+sod(n) for n = 421552987 and 421553005.

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, 15041 + ... + 32700.

It is an arithmetic number, because the mean of its divisors is an integer number (47479419).

Almost surely, 2^421553030 is an apocalyptic number.

421553030 is a deficient number, since it is larger than the sum of its proper divisors (338117674).

421553030 is a wasteful number, since it uses less digits than its factorization.

421553030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48631.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 421553030 is about 20531.7566223643. The cubic root of 421553030 is about 749.8091544044.

The spelling of 421553030 in words is "four hundred twenty-one million, five hundred fifty-three thousand, thirty".