421402300 has 72 divisors (see below), whose sum is σ = 1007716752. Its totient is φ = 151680000.

The previous prime is 421402291. The next prime is 421402301. The reversal of 421402300 is 3204124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421402301) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109204 + ... + 112996.

It is an arithmetic number, because the mean of its divisors is an integer number (13996066).

Almost surely, 2^421402300 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 421402300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (503858376).

421402300 is an abundant number, since it is smaller than the sum of its proper divisors (586314452).

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

421402300 is a wasteful number, since it uses less digits than its factorization.

421402300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3919 (or 3912 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 421402300 is about 20528.0856389484. The cubic root of 421402300 is about 749.7197767945.

Adding to 421402300 its reverse (3204124), we get a palindrome (424606424).

The spelling of 421402300 in words is "four hundred twenty-one million, four hundred two thousand, three hundred".