421280300 has 72 divisors (see below), whose sum is σ = 1055099136. Its totient is φ = 143012160.

The previous prime is 421280287. The next prime is 421280323. The reversal of 421280300 is 3082124.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 69179 + ... + 75021.

Almost surely, 2^421280300 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 421280300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (527549568).

421280300 is an abundant number, since it is smaller than the sum of its proper divisors (633818836).

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

421280300 is a wasteful number, since it uses less digits than its factorization.

421280300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5967 (or 5960 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 421280300 is about 20525.1138851895. The cubic root of 421280300 is about 749.6474194604.

The spelling of 421280300 in words is "four hundred twenty-one million, two hundred eighty thousand, three hundred".