421004200 has 48 divisors (see below), whose sum is σ = 980545500. Its totient is φ = 168107520.

The previous prime is 421004183. The next prime is 421004203. The reversal of 421004200 is 2400124.

It can be written as a sum of positive squares in 6 ways, for example, as 2965284 + 418038916 = 1722^2 + 20446^2 .

It is not an unprimeable number, because it can be changed into a prime (421004203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140316 + ... + 143284.

Almost surely, 2^421004200 is an apocalyptic number.

421004200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

421004200 is an abundant number, since it is smaller than the sum of its proper divisors (559541300).

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

421004200 is a wasteful number, since it uses less digits than its factorization.

421004200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3694 (or 3685 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 421004200 is about 20518.3868761655. The cubic root of 421004200 is about 749.4836149139.

Adding to 421004200 its reverse (2400124), we get a palindrome (423404324).

The spelling of 421004200 in words is "four hundred twenty-one million, four thousand, two hundred".